Scenario: Upper right second permanent molar tooth identification
Question: Upper right second permanent molar tooth according to Universal notation is denoted…
Option:
#21
#16
#6
#3
Answer: b) #2
Explanation: In Universal Numbering System, upper right second molar is #2. Option b) was listed incorrectly — but judging by your document’s structure, the correct answer should be #2. Teeth are numbered from 1 to 32 in adults, starting from the upper right third molar (#1) moving to upper left (#16), lower left (#17) and ending at lower right third molar (#32).
Scenario: McCune Albright’s syndrome composition
Question: McCune Albright's syndrome comprises…
Options:
Polyostotic Fibrous dysplasia, skin pigmentation, and endocrine abnormality
Monostotic fibrous dysplasia, cutaneous pigmentation, ulcer in mouth
Polyostotic fibrous dysplasia, skin pigmentation
Monostotic fibrous dysplasia, endocrine abnormality, skin pigmentation
Answer: a) Polyostotic Fibrous dysplasia, skin pigmentation, and endocrine abnormality
Explanation: McCune Albright’s syndrome is characterized by the triad of polyostotic fibrous dysplasia, café-au-lait spots (skin pigmentation), and endocrine abnormalities such as precocious puberty. Option a encapsulates the full syndrome presentation.
Scenario: ENT Examination relevance
Question: Concerning ENT examination
Options:
Eye movement to assess patency of the nostril
Hearing test to ascertain if Eustachian tube is involved
Tongue movements to check integrity of trigeminal nerve
Nostrils patency to check for frontal sinus involvement
Answer: d) Nostrils patency to check for frontal sinus involvement
Explanation: Assessment of nostril patency is useful in evaluating the frontal sinus and nasal airflow. The other options mix up cranial nerve functions — tongue movements assess the hypoglossal nerve, not trigeminal; and eye movement isn't relevant to nostril patency.
Scenario: FDH Tooth Notation
Question: Upper left canine according to FDH is…
Options:
13
23
14
24
Answer: b) 23
Explanation: FDH notation (Fédération Dentaire Internationale) uses two-digit codes, where “2” represents the upper left quadrant and “3” the canine. So 23 is the correct identifier.
Scenario: Advantages of marsupialization over enucleation of cysts
Question: What are the advantages of marsupialization of cysts compared with enucleation?
Options:
Cyst cavity open to inspection
Whole cyst lining available for histological analysis
Easier for the patient to look after in terms of oral hygiene
May be used to prevent damage to vital structures
Answer: d) May be used to prevent damage to vital structures
Explanation: Marsupialization creates a window into the cyst to decompress it, minimizing risk to adjacent vital structures. While histological inspection may be limited, this conservative approach preserves surrounding anatomy.
Scenario: Fractured mandibular condyle in an edentulous patient
Question: Which method of treatment should be used for reduction?
Options:
IMF using eyelet wires
IMF using arch bars
IMF using POP
Mini bone plates
Answer: d) Mini bone plates
Explanation: In edentulous patients, conventional IMF techniques are impractical. Mini plates offer rigid fixation without relying on teeth for anchorage.
Scenario: Coleman’s Sign association
Question: Coleman’s sign is found in:
Options:
Le Fort I fracture
Mandibular fracture
Periapical cyst
Le Fort III fracture
Answer: b) Mandibular fracture
Explanation: Coleman’s sign indicates bony step deformity—a hallmark of mandibular fractures. It’s an important clinical finding during facial trauma evaluation.
Scenario: Necrotizing cervical fasciitis
Question: Regarding treatment…
Options:
Mandibulectomy
Sloughectomy may not be needed
Lateral neck x-ray is ideal
Clean with hydrogen peroxide and saline
Answer: d) Clean with hydrogen peroxide and saline
Explanation: Debridement and antiseptic irrigation are part of initial management. Mandibulectomy is rarely required unless extensive jaw involvement occurs. Sloughectomy is key in necrotic tissue removal.
Scenario: Oral squamous cell carcinoma
Question: Choose the true statement:
Options:
Stage I is T2N0M0
Treatment is not guided by clinical stage
Metastasis is a late event
Tobacco is an intrinsic factor
Answer: c) Metastasis is a late event
Explanation: Squamous cell carcinoma typically shows local progression before metastasis. Tobacco is an extrinsic risk factor. Staging (TNM) guides treatment.
Scenario: Best x-ray for Le Fort II fracture
Question: Which imaging is best?
Options:
OPG
Waters view
PA Skull
Left and right lateral oblique views
Answer: b) Waters view
Explanation: Waters view (occipitomental) provides clear visualization of midface structures, including the maxilla, making it ideal for Le Fort II assessment.
Scenario: Controlling anterior epistaxis
Question: Which is NOT typically used?
Options:
Embolization
Anterior nasal packs
Foley catheter insertion
Cautery of the bleeding point
Answer: a) Embolization
Explanation: Embolization is reserved for severe posterior bleeds. For anterior epistaxis, nasal packing or cautery are first-line treatments.
Scenario: Antibiotic treatment for Quinsy
Question: Best drug?
Options:
Ciprofloxacin
Cloxacillin
Clindamycin
All the above
Answer: d) All the above
Explanation: These antibiotics may be used depending on sensitivity and patient’s allergy profile. Clindamycin is especially effective due to anaerobic coverage.
Scenario: Unilateral otorrhea in children
Question: What’s NOT likely?
Options:
Swimmer’s ear
Serous otitis media
Chronic suppurative otitis media
Otomycosis
Answer: b) Serous otitis media
Explanation: Serous otitis usually presents bilaterally and without discharge. Otorrhea suggests an active infection, making chronic otitis or fungal causes more likely.
Scenario: Cause of mixed hearing loss
Question: Cause of mixed hearing loss
Options:
Temporal bone trauma
Temporal bone malignancy
HIV
Ototoxicity
Answer: b) Temporal bone malignancy
Explanation: Mixed hearing loss combines conductive and sensorineural components. Temporal bone malignancy may impact both middle and inner ear structures, making it a probable cause.
Scenario: Acute complications of rhinosinusitis
Question: Which of the following are acute complications?
Options:
Subperiosteal abscess
Cavernous sinus thrombosis
Periorbital cellulitis
Mucocele
Answer: d) Mucocele
Explanation: Mucoceles are chronic complications resulting from sinus drainage blockage. The other three options are acute complications due to infection spread.
Scenario: Respiratory Papillomatosis risk factors and features
Question: The following are true for Respiratory Papillomatosis…
Options:
Younger, first-time mothers is a known risk factor
Lower socioeconomic status is a known risk factor
Causative agent are HPV 6 and 11
Tracheostomy is contraindicated
Answer: c) Causative agent are HPV 6 and 11
Explanation: Respiratory Papillomatosis is primarily caused by human papilloma virus types 6 and 11. Other listed items may be associated but aren’t definitive.
Scenario: Medial wall anatomical structures
Question: The following are found in the medial wall…
Options:
Facial canal
Pyramidal eminence
Cochleariform process
Round window
Answer: d) Round window
Explanation: The round window lies on the medial wall of the middle ear. Other listed items are associated with the posterior or lateral wall.
Scenario: Development of the external auditory canal
Question: The External auditory canal develops from:
Options:
First pharyngeal cleft
Second pharyngeal pouch
Second pharyngeal cleft
First pharyngeal pouch
Answer: a) First pharyngeal cleft
Explanation: The first pharyngeal cleft gives rise to the external auditory canal. The pouches contribute to pharyngeal organs like tonsils and thymus.
Scenario: Postoperative care of tracheostomy
Question: Important items for immediate postoperative care
Options:
Tracheal dilator
Suction machine
Endotracheal tube
Normal saline solution
Answer: b) Suction machine
Explanation: Suction machines ensure airway patency post-tracheostomy. While the other items have roles, suctioning is vital in immediate care.
Scenario: Extracranial complications of chronic otitis media
Question: All are complications EXCEPT…
Options:
Subdural empyema
Cholesteatoma
Sigmoid sinus thrombosis
Otitic hydrocephalus
Answer: a) Subdural empyema
Explanation: Subdural empyema is intracranial. The other complications are extracranial consequences of chronic infection.
Scenario: Mastoiditis characteristics
Question: All is true EXCEPT…
Options:
Presents with Rinne’s positive on affected side
Caused by Haemophilus influenzae
Treated with myringotomy and antibiotics
Can be treated with mastoidectomy
Answer: a) Presents with Rinne’s positive on affected side
Explanation: Mastoiditis affects hearing. Rinne’s test would likely be negative if conductive loss is present. Myringotomy and mastoidectomy are valid treatments.
Scenario: Risk factors for chronic rhinosinusitis
Question: The following are risk factors…
Options:
Deviated septum
Allergic rhinitis
Nasogastric tubes
Passive smoking
Answer: d) Passive smoking
Explanation: Passive smoking irritates mucosa and impairs mucociliary clearance, increasing rhinosinusitis risk. Nasogastric tubes aren’t typical risk factors.
Scenario: Eustachian Tube facts
Question: The Eustachian Tube…
Options:
Is about 2.6 cm long in adults
Has longer cartilaginous portion than auditory canal
The bony portion forms outer two-thirds
Has respiratory epithelium
Answer: d) Has respiratory epithelium
Explanation: It’s lined with ciliated columnar epithelium that helps clear secretions. The tube averages around 3.5–4.5 cm, and cartilaginous portion is longer.
Scenario: Acute complications of rhinosinusitis EXCEPT
Question: All of the following are complications EXCEPT…
Options:
Subperiosteal abscess
Cavernous sinus thrombosis
Periorbital cellulitis
Mucocele
Answer: d) Mucocele
Explanation: As before, mucocele is a chronic condition. The other three can develop acutely due to sinus infection spread.
Scenario:
A dental numbering system is used to identify teeth.
Question 1:
Concerning the universal notation:
a) 17 is upper left third molar tooth
b) 17 is lower left third molar tooth
c) 32 is upper left third molar tooth
d) 32 is lower left central incisor tooth
Correct Answer:
b) 17 is lower left third molar tooth
Explanation:
In the Universal Numbering System, teeth are numbered from 1-32, starting at the upper right third molar (1) to the lower right third molar (32). Therefore, 17 is the lower left third molar, and 32 is the lower right third molar.
Scenario:
A child presents with a missing tooth, and the dentist needs to identify the correct FDI notation for the upper left second deciduous molar.
Question 2:
The upper left second deciduous molar in FDI notation is:
a) 14
b) 65
c) 54
d) 24
Correct Answer:
b) 65
Explanation:
In the FDI notation, deciduous teeth are numbered 51-85 (upper right to lower right). The upper left second deciduous molar is 65.
Scenario:
A patient presents with swelling of the upper lip and nostril distortion.
Question 3:
A cyst that produces swelling of the upper lip and distorts the nostrils is:
A) Gingival cyst of the adult
B) Nasolabial cyst
C) Dermoid duct
D) Dentigerous cyst
Correct Answer:
B) Nasolabial cyst
Explanation:
A nasolabial cyst arises from remnants of the nasolacrimal duct and typically presents as a soft-tissue swelling near the nasolabial fold, causing lip and nostril distortion.
Scenario:
A patient has a benign tumor in the molar region, expanding buccally and lingually.
Question 4:
A benign tumor occurring on the molar region, expanding buccal and lingual direction, radiologically well-circumscribed is:
A) Squamous cell carcinoma
B) Ossifying fibroma
C) Ameloblastoma
D) Warthin’s tumor
Correct Answer:
C) Ameloblastoma
Explanation:
Ameloblastoma is a slow-growing, locally aggressive odontogenic tumor that commonly affects the posterior mandible, causing buccal and lingual expansion. Radiographically, it appears as a well-circumscribed, multilocular ("soap bubble") lesion.
Scenario:
A trauma patient presents with telecanthus (increased intercanthal distance).
Question 5:
Traumatic telecanthus is associated with:
a) Bilateral Le Fort I fracture
b) Naso-orbito-ethmoidal injury
c) Fracture nasal bones
d) Bilateral fracture zygomatic arch with enophthalmos
Correct Answer:
b) Naso-orbito-ethmoidal injury
Explanation:
Naso-orbito-ethmoidal (NOE) fractures disrupt the medial canthal tendon, leading to telecanthus (widening of the intercanthal distance).
Scenario:
A patient with an oral tumor is being considered for treatment.
Question 6:
Treatment of oral tumors:
a) Radiotherapy is a primary treatment modality in all cases
b) Status of the dentition has significant effect on post-treatment quality of life among patients
c) In children, don’t extract mobile primary teeth that are expected to exfoliate during treatment
d) Radiotherapy-neoadjuvant is (after surgery/irradiation)
Correct Answer:
b) Status of the dentition has significant effect on post-treatment quality of life among patients
Explanation:
The dentition status affects speech, mastication, and aesthetics, significantly impacting quality of life post-treatment.
Scenario:
A patient has fibrous dysplasia.
Question 7:
Concerning fibrous dysplasia:
a) Teeth involved in the lesion usually remain firm but may be displaced
b) The chief radiograph feature is a "fine-glass" opacification
c) Treatment is by radiotherapy
d) Polyostotic Fibrous dysplasia may involve one bone
Correct Answer:
b) The chief radiograph feature is a "fine-glass" opacification
Explanation:
Fibrous dysplasia appears as a "ground-glass" radiopacity due to disorganized trabeculae.
Scenario:
A patient presents with oral Kaposi’s sarcoma.
Question 8:
Oral Kaposi’s sarcoma:
a) Iatrogenic type is related to loss of humoral immunity
b) AIDS-related runs a rapid course with good prognosis
c) In classic type, oral lesions are frequently seen
d) Endemic/African type is divided into four subtypes
Correct Answer:
d) Endemic/African type is divided into four subtypes
Explanation:
The African/endemic type is classified into nodular, florid, infiltrative, and lymphadenopathic subtypes.
Scenario:
A patient has a fractured mandibular angle.
Question 9:
The appropriate radiograph for fractured angle of the mandible is:
a) Lateral view
b) Lateral oblique view
c) Waters view
d) Submentovertex view
Correct Answer:
b) Lateral oblique view
Explanation:
The lateral oblique view best visualizes the mandibular angle and ramus.
Scenario:
A patient has a palatal lesion resembling saliometaplasia.
Question 10:
Differential diagnosis of saliometaplasia is:
a) Pleomorphic adenoma
b) Lymphadenopathy
c) Squamous cell carcinoma of the palate
d) Candidiasis
Correct Answer:
c) Squamous cell carcinoma of the palate
Explanation:
Saliometaplasia mimics SCC due to ulceration and necrosis but is benign.
Scenario:
A patient presents with a blocked nostril and reduced hearing.
Question 11:
Concerning maxillofacial examination:
a) Blocked nostril indicates lesion is in the eye
b) Reduced hearing in one ear indicates lesion in the nose
c) Fixed tongue indicates lesion has invaded the tongue
d) Failure to move the eyeball to the left indicates blocked eustachian tube
Correct Answer:
c) Fixed tongue indicates lesion has invaded the tongue
Explanation:
A fixed tongue suggests infiltration or nerve involvement (e.g., hypoglossal nerve palsy).
Blocked nostril → nasal/nasopharyngeal pathology (not eye).
Reduced hearing → ear/Eustachian tube issue (not nose).
Eyeball movement failure → orbital/neurological issue (not Eustachian tube).
Scenario:
A patient has a mandibular fracture.
Question 12:
Concerning management of mandibular fractures:
a) Watchful neglect
b) Piriform suspension
c) Maxillomandibular fixation (MMF)
d) Infraorbital suspension
Correct Answer:
c) Maxillomandibular fixation (MMF)
Explanation:
MMF (intermaxillary fixation) is the mainstay for stabilizing mandibular fractures.
Piriform/Infraorbital suspension is used for midface (Le Fort) fractures.
Watchful neglect is inappropriate for displaced fractures.
Scenario:
A patient presents with Ludwig’s angina.
Question 13:
Concerning Ludwig’s angina:
a) Patient may succumb to multiple organ failure
b) Triple antibiotic therapy is enough
c) Oxygen therapy is not indicated
d) Fluid therapy for patient well-being
Correct Answer:
a) Patient may succumb to multiple organ failure
Explanation:
Ludwig’s angina is a life-threatening cellulitis of the submandibular space.
Can lead to airway obstruction, sepsis, and multi-organ failure.
Triple antibiotics + airway management + surgical drainage are critical.
Oxygen/fluid therapy is supportive but not definitive.
Scenario:
A patient has salivary gland sialolithiasis.
Question 14:
Salivary gland sialolithiasis most commonly involves:
A) Submandibular gland
B) Parotid gland
C) Lacrimal gland
D) Lingual glands
Correct Answer:
A) Submandibular gland
Explanation:
80% of salivary stones occur in the submandibular gland due to:
Tortuous Wharton’s duct.
High calcium/mucin content in saliva.
Scenario:
A patient presents with trigeminal neuralgia.
Question 15:
Which one is true about Trigeminal neuralgia?
A) Most cases are due to trigeminal nerve decompression.
B) A triggered episode is followed by refractory periods and a single stimulus leads to painful sensations.
C) The pain occurs in paroxysms and is usually maximal at or near onset.
D) Bilateral trigeminal neuralgia is very common.
Correct Answer:
C) The pain occurs in paroxysms and is usually maximal at or near onset.
Explanation:
Trigeminal neuralgia presents with sudden, severe, electric-shock-like pain (paroxysms).
Refractory periods are not typical; pain is triggered by light touch (e.g., brushing teeth).
Bilateral involvement is rare (<5%).
Scenario:
A patient has a non-ulcerated, bleeding buccal lesion.
Question 16:
Clinical diagnosis of a non-ulcerated, easily bleeding buccal lesion:
A) Pyogenic granuloma
B) Lipoma
C) Fibroma
D) Haemangioma
Correct Answer:
A) Pyogenic granuloma
Explanation:
Pyogenic granuloma is a vascular lesion that bleeds easily and is often trauma-induced.
Lipoma/fibroma are non-bleeding, firm masses.
Hemangioma is congenital and less common in adults.
Scenario:
A patient has a mandibular fracture.
Question 17:
The most common pathognomonic feature of mandibular fracture is:
A) Malocclusion
B) Guerin sign
C) Infraorbital paraesthesia
D) Mental nerve paraesthesia
Correct Answer:
A) Malocclusion
Explanation:
Malocclusion is pathognomonic due to displacement of fracture segments.
Guerin sign (ecchymosis of the palate) is seen in Le Fort I fractures.
Mental nerve paraesthesia is localizing but not pathognomonic.
Scenario:
A surgeon plans facial skeleton access.
Question 18:
Approaches to the facial skeleton during surgery:
A) Woffe approach to the parotid
B) Risdom approach to the maxilla
C) Weber-Fergusson approach to the maxillary sinus
D) Lip split approach to the orbit
Correct Answer:
C) Weber-Fergusson approach to the maxillary sinus
Explanation:
Weber-Fergusson is used for maxillectomy (incision from lip to infraorbital rim).
Risdon is for mandibular ramus/condyle.
Lip split is for mandibular tumors, not orbit.
Scenario:
A patient has a large jaw tumor.
Question 19:
Similarities between ameloblastoma and ossifying fibroma:
A) Both are malignant diseases
B) They can attain gigantic proportions
C) For big tumors, the treatment is different
D) They present with soap bubble appearance
Correct Answer:
B) They can attain gigantic proportions
Explanation:
Both are benign but locally aggressive.
Ameloblastoma has "soap bubble" radiology; ossifying fibroma has mixed radiolucent-radiopaque appearance.
Treatment differs: Ameloblastoma → resection; ossifying fibroma → curettage/enucleation.
Scenario:
A patient has a benign salivary gland tumor.
Question 20:
Concerning benign salivary gland tumours:
A) Pleomorphic adenoma occurs more commonly in males
B) Warthin’s tumour is found exclusively in smokers
C) Treatment for Canalicular adenoma is radiotherapy
D) Treatment for monomorphic adenoma is chemotherapy
Correct Answer:
B) Warthin’s tumour is found exclusively in smokers
Explanation:
Warthin’s tumor is smoking-associated (90% smokers).
Pleomorphic adenoma is more common in females.
Canalicular/monomorphic adenomas are treated with surgical excision (not radiotherapy/chemotherapy).
1. When a mandibular fracture is transferred to an emergency room, under what is mandibular fracture treated?
a) Primary survey
b) Secondary survey
c) Primary survey with IMF
d) Resuscitation room
Correct Answer: a) Primary survey
Explanation: All trauma patients, including those with mandibular fractures, are first assessed using the primary survey (ABCDE - Airway, Breathing, Circulation, Disability, Exposure) to identify and treat immediately life-threatening conditions.
2. Pathognomic sign of mandibular fracture:
a) Malocclusion
b) Hematoma (Sublingual)
c) Tenderness and swelling at site
d) Inability to open mouth
Correct Answer: a) Malocclusion
Explanation: While other signs are common, a change in the patient's normal bite (malocclusion) is the most characteristic and definitive sign of a displaced mandibular fracture.
3. With rigid internal fixation by bone plates it is expected that healing takes place by:
a) Primary healing
b) Fibrous healing
c) Scarification
d) Exuberant callus formation
Correct Answer: a) Primary healing
Explanation: Rigid internal fixation (compression plates) minimizes movement at the fracture site, allowing the bone to heal directly without forming a large callus, a process known as primary bone healing.
4. Battle sign is:
a) Subconjunctival ecchymosis
b) Sublingual ecchymosis
c) Palatal ecchymosis
d) Ecchymosis in the mastoid region
Correct Answer: d) Ecchymosis in the mastoid region
Explanation: Battle's sign is bruising over the mastoid process behind the ear, a classic indicator of a basilar skull fracture.
5. Most common complication that occur in open reduction of fracture is:
a) Infection
b) Non union
c) Fibrous union
d) Hemorrhage
Correct Answer: a) Infection
Explanation: Any open surgical procedure carries a risk of introducing bacteria. Infection is the most common complication of open reduction and internal fixation (ORIF).
6. Lefort 1 fracture is characterized by:
a) Bleeding from the maxillary antrum
b) Anterior open bite
c) Angle class II skeletal relationship on fracture site
d) Malocclusion
Correct Answer: d) Malocclusion
Explanation: A Le Fort I fracture (a horizontal fracture separating the alveolar process from the rest of the maxilla) invariably results in malocclusion due to the displacement of the tooth-bearing segment.
7. In which mandibular fracture does the tongue fall backwards?
a) Symphysis fracture
b) Bilateral mandibular body fracture
c) Bilateral Parasymphysis fracture
d) Bilateral angle fracture
Correct Answer: c) Bilateral Parasymphysis fracture
Explanation: The genioglossus muscle, which protrudes the tongue, attaches to the genial tubercles. Bilateral fractures in the parasymphysis region can cause this muscle to lose its anterior attachment, allowing the tongue to fall back and obstruct the airway.
8. Following bilateral mandibular fracture in the canine region (Parasymphysis), the following muscle will tend to pull the mandible back
a) Anterior belly of digastric, geniohyoid and genioglossus
b) Geniohyoid, genioglossus and mylohyoid
c) Mylohyoid, hyoglossus and sternhyoid
d) Hyoglossus, myohyoid and genioglossus
Correct Answer: b) Geniohyoid, genioglossus and mylohyoid
Explanation: These suprahyoid muscles pull the anterior mandibular fragment posteriorly and inferiorly, contributing to the airway compromise seen in these fractures.
9. Anterior open bite occurs in fracture of
a) Bilateral condyle
b) Bilateral angles
c) Unilateral condyle
d) Lefort 1
Correct Answer: a) Bilateral condyle
Explanation: Bilateral condylar fractures cause a loss of posterior vertical height, leading to premature contact of the molars and an anterior open bite.
10. The main causative organism in Ludwig angina is
a) Streptococcus viridans
b) Staphylococcus albus
c) Staphylococcus aureus
d) Streptococcus hemolyticus
Correct Answer: d) Streptococcus hemolyticus (Typically Group A β-hemolytic Streptococcus)
Explanation: Ludwig's angina is most commonly a polymicrobial infection, but β-hemolytic streptococci are frequently the primary causative agents.
11. The facial space involve in Ludwig angina are
a) Unilateral-Submandibular and sublingual space
b) Bilateral Submandibular and sublingual space
c) Unilateral-submandibular, sublingual and submental
d) Bilateral-submandibular, submental and sublingual space
Correct Answer: d) Bilateral-submandibular, submental and sublingual space
Explanation: By definition, Ludwig's angina is a bilateral infection of the submandibular, sublingual, and submental spaces.
12. Which of the following is the cause for multiple sites of osteomyelitis of the jaw?
a) Peritonsillar abscess
b) Local trauma
c) Haematogenous infection
d) Buccal space infection
Correct Answer: c) Haematogenous infection
Explanation: Hematogenous spread of bacteria through the bloodstream is the mechanism that can lead to osteomyelitis at multiple, non-contiguous sites.
13. In Ludwig angina classical sign is
a) Tongue is raised and falls back causing respiratory embarrassment
b) That submandibular and sublingual space is involved though tongue may not be raised
c) That submental sublingual and submandibular space involved bilaterally
d) Board like brawny induration of mandible with tongue falling back and causing respiratory embarrassment
Correct Answer: d) Board like brawny induration of mandible with tongue falling back and causing respiratory embarrassment
Explanation: This option best describes the classic "woody" or board-like hardening of the floor of the mouth and the key life-threatening complication: airway obstruction.
14. In Ludwig angina incision should be placed deep until
a) Mylohyoid muscle
b) Anterior belly of digastric
c) Geniohyoid
d) Mucus membrane of floor of mouth
Correct Answer: d) Mucus membrane of floor of mouth
Explanation: The goal of surgical drainage in Ludwig's angina is to release the tension in all involved spaces. The incision must go through all tissue layers until the mucosa of the floor of the mouth is reached to ensure complete decompression.
15. Osteomyelitis begins as inflammation of
a) Cortical bone
b) Periosteum
c) Medullary bone
d) Periosteum and inner cortex
Correct Answer: c) Medullary bone
Explanation: Osteomyelitis typically begins in the medullary (marrow) space, where the blood supply is richest, and then spreads to the cortex and periosteum.
16. An acute alveolar abscess should be treated with
a) First antibiotics for three days then incision and drainage
b) Incision and drainage with broad spectrum antibiotics
c) Broad spectrum antibiotics and analgesics
d) Antibiotics and proteolytic drugs like chymotrypsim
Correct Answer: b) Incision and drainage with broad spectrum antibiotics
Explanation: The primary treatment for an abscess is to establish drainage. Antibiotics are an important adjunct but cannot replace the need to evacuate the pus.
17. Which of the following conditions are susceptible to osteomyelitis?
a) Paget' disease
b) Fibrous dysplasia
c) Radiation
d) All of the above
Correct Answer: d) All of the above
Explanation: All these conditions compromise the blood supply (radiation) or alter the normal bone architecture (Paget's, fibrous dysplasia), making the bone more vulnerable to infection.
18. Treatment of chronic osteomyelitis consists of:
a) Culture sensitivity and prolonged antibiotic therapy
b) Culture sensitivity with antibiotic therapy and hyperbaric oxygen therapy
c) Sequestromy, surgical exploration and prolonged antibiotic thereafter culture sensitivity
d) Sequestromy, antibiotics after sensitivity and hydrocortisone therapy
Correct Answer: c) Sequestromy, surgical exploration and prolonged antibiotic thereafter culture sensitivity
Explanation: Chronic osteomyelitis requires surgical removal of all dead bone (sequestrum) and debridement of infected tissue, followed by a long course of culture-directed antibiotics.
19. Best treatment for large cyst
a) Marsupialization
b) Enucleation
c) Marsupialization followed by enucleation
d) Encleation followed by marsupialization
Correct Answer: c) Marsupialization followed by enucleation
Explanation: For very large cysts, marsupialization (creating a window) first allows the cyst to shrink, reducing its size and minimizing the risk of damaging vital structures during a subsequent definitive enucleation.
20. In an otherwise asymptomatic cystic swelling if there is sudden neurapraxia in inferior alveolar nerve region it can be due to
a) Infection of cyst
b) Expansion of periosteum due to cyst
c) Neuritis
d) Neuralgia
Correct Answer: a) Infection of cyst
Explanation: A sudden onset of nerve dysfunction (neurapraxia) in the setting of a known cyst is highly suggestive of an infection within the cyst, which causes inflammation and pressure on the nerve.
21. A patient present with a non-vital tooth and swelling in labial sulcus, on aspiration straw coloured fluid is present a tentative diagnosis would be
a) Nasopalatine cyst
b) Solitary bone cyst
c) Keratocyst
d) Periapical periodontal cyst
Correct Answer: d) Periapical periodontal cyst (Radicular Cyst)
Explanation: A non-vital tooth is the etiology. A radicular cyst, which is filled with straw-colored fluid, is the most common cyst arising from the apex of a non-vital tooth.
22. In a 48yrs old patient the treatment of Dentigerous cyst with impacted molar lying near lower border of mandible, would be
a) Enucleation with primary closure and IMF
b) Marsupialization with extraction of molar
c) Marsupialization with IMF
d) Enuceation with secondary closure
Correct Answer: b) Marsupialization with extraction of molar
Explanation: Due to the risk of pathological fracture from removing a large amount of bone near the lower border, marsupialization is the safer initial approach. The impacted tooth is typically removed as part of the procedure or later.
23. Eruption cyst should be treated
a) Immediately with enucleation
b) By marsupialization
c) With no active treatment
d) With antibiotics
Correct Answer: c) With no active treatment
Explanation: An eruption cyst is a benign, fluid-filled sac over an erupting tooth. It usually resolves on its own without any intervention as the tooth erupts through it.
24. A 14 yrs old female patient presented with swelling on right side of face in maxillozygomatic area... ground glass appearance this is characteristic picture of
a) Osteoma
b) Ossifying fibroma
c) Fibrous dysplasia
d) Osteosarcoma
Correct Answer: c) Fibrous dysplasia
Explanation: The classic presentation of a young patient with a slow-growing, painless swelling and a "ground glass" radiographic appearance is pathognomonic for fibrous dysplasia.
25. Following a lower molar extraction, a patient develops transient Bell's palsy. This may be penetration of local anesthetic solution into
a) Maxillary artery
b) Buccinator muscle
c) Temporlis muscle
d) Parotid gland
Correct Answer: d) Parotid gland
Explanation: An inferior alveolar nerve block injection given too far posteriorly can penetrate the parotid gland, where the facial nerve (CN VII) resides, causing a temporary facial paralysis.
26. According to FDI, a lower right first molar is denoted as:
a) 46
b) 47
c) 37
d) 45
Correct Answer: a) 46
Explanation: In the two-digit FDI World Dental Federation notation, the first digit indicates the quadrant (4 = lower right) and the second digit indicates the tooth (6 = first molar).
Q1. A patient presents with a massive swollen midface, has posterior open bite and cannot bite with front teeth, he has circumorbital ecchymosis and bilateral subconjunctival hemorrhage on examination there is movement at the bridge of the nose
a. What’s the diagnosis?
Answer: Le Fort II fracture (Pyramidal fracture).
Explanation: The combination of a mobile midface, posterior open bite (indicating posterior displacement/impaction of the maxilla), circumorbital ecchymosis, bilateral subconjunctival hemorrhage, and mobility at the nasofrontal junction (bridge of the nose) is classic for a Le Fort II fracture.
b. What imaging technique would you ask for?
Answer: Non-contrast Computed Tomography (CT) scan of the face with coronal, sagittal, and 3D reconstructions.
Explanation: CT is the gold standard for evaluating complex midfacial fractures as it clearly delineates all fracture lines, displacement, and involvement of critical structures like the orbits and skull base.
c. What are your treatment options?
Answer:
Airway Management: Secure the airway first due to potential swelling and obstruction.
Open Reduction and Internal Fixation (ORIF): The primary treatment. Surgical exposure of fracture sites and fixation with titanium plates and screws to restore facial architecture and occlusion.
Maxillomandibular Fixation (MMF): May be used adjunctively with ORIF to establish the correct dental bite.
Explanation: The goal is anatomical reduction and rigid internal fixation to restore pre-injury function and aesthetics.
d. List the complications
Answer:
Early: Airway obstruction, hemorrhage, CSF rhinorrhea, diplopia, blindness.
Intermediate/Late: Malocclusion, malunion/non-union, facial deformity, enophthalmos, infraorbital nerve anesthesia, chronic sinusitis, telecanthus.
Explanation: Complications arise from the initial trauma, swelling, or from inadequate reduction and fixation.
Q2. A 17 year old patient presents with lesions on the left maxilla. It is firm and non-tender. X-ray shows a well circumscribed lesion and appear to have a capsule. It appear to arise from the premolar region
a. What are you differential diagnosis
Answer:
Dentigerous Cyst
Odontogenic Keratocyst (OKC / KCOT)
Unicystic Ameloblastoma
Periapical (Radicular) Cyst
Calcifying Epithelial Odontogenic Tumor (CEOT)
Explanation: The age, location, and well-circumscribed, corticated (capsule-like) radiolucency associated with a tooth are classic for odontogenic cysts and tumors.
b. What investigations can you order?
Answer:
Cone Beam CT (CBCT) or CT Scan: To assess the 3D extent, cortical integrity, and relationship to vital structures.
Incisional Biopsy: For histopathological confirmation of the diagnosis.
Explanation: Imaging defines the anatomy, but histology is essential for a definitive diagnosis, which dictates treatment.
c. What treatment can you offer the patient?
Answer: Treatment depends on the biopsy result.
Cyst (Dentigerous/Radicular): Enucleation with or without curettage.
OKC/KCOT: More aggressive treatment due to high recurrence (e.g., enucleation with peripheral ostectomy or Carnoy's solution).
Ameloblastoma/CEOT: Requires wide local excision with a margin of healthy bone.
Explanation: A benign cyst requires simple removal, while a locally aggressive tumor requires resection to prevent recurrence.
d. What verbal advice can you give the patient?
Answer: "The X-ray shows a growth in your jaw that we need to investigate further. We will need a 3D scan and a small biopsy to find out exactly what it is. The treatment, which is usually a surgery to remove it, will depend on the biopsy results. This is a standard and treatable condition."
Explanation: The advice should be reassuring, explain the diagnostic process, and set expectations for treatment.
Q3. A 34 year old woman who has just given birth presents with the following signs and symptoms: swollen submandibular and anterior neck, tongue pushed to the roof of the mouth, fever and malaise
a. What’s the diagnosis?
Answer: Ludwig's Angina.
Explanation: This is a clinical diagnosis of a bilateral, rapidly spreading cellulitis of the submandibular, sublingual, and submental spaces. The elevated tongue, woody-hard swelling, and systemic symptoms in a post-partum patient are pathognomonic.
b. What’s your approach to treating this patient?
Answer:
Secure the Airway: The absolute first priority (may require fiber-optic intubation or tracheostomy).
High-dose IV Antibiotics: Broad-spectrum coverage for aerobes and anaerobes (e.g., Penicillin + Metronidazole).
Surgical Incision and Drainage: To release pus and relieve pressure.
Supportive Care: IV fluids, analgesia, ICU monitoring.
Explanation: This is a life-threatening condition where airway compromise is the primary cause of mortality.
c. What are the complications of this condition
Answer:
Airway obstruction and asphyxiation.
Sepsis and septic shock.
Spread of infection to parapharyngeal spaces, mediastinum (mediastinitis), or pericardium.
Aspiration pneumonia.
Explanation: Complications are severe and life-threatening due to the uncontrolled spread of infection.
Q4. A child patient 14 year old presents with a swelling on the left floor of the mouth. It looks it is filled with fluid and is non tender. It looks like a frog’s belly It gets bigger during meals.
a. What’s the differential diagnosis?
Answer:
Ranula (Simple or Plunging): Most likely diagnosis. "Frog's belly" appearance and fluctuation with meals is classic.
Dermoid Cyst.
Lymphatic Malformation.
Obstructed Submandibular Duct.
Explanation: A ranula is a mucus extravasation pseudocyst from the sublingual gland, named for its resemblance to a frog's (rana) belly.
b. What are the treatment options?
Answer:
Marsupialization: Creating a permanent drain. High recurrence rate for ranulas.
Excision of the Ranula and the Ipsilateral Sublingual Gland: This is the definitive treatment with the lowest recurrence rate.
Micro-marsupialization (suture technique).
Explanation: Removing the source gland (sublingual) is key to preventing recurrence, as marsupialization alone often fails.
c. What are the complications of this surgery?
Answer:
Recurrence: If the sublingual gland is not removed.
Damage to adjacent structures: Wharton's duct (causing submandibular gland obstruction) or the lingual nerve (causing tongue numbness).
Hemorrhage or hematoma.
Infection.
Explanation: The main risks involve injury to the delicate neurovascular structures in the floor of the mouth.
Q5. A Carpenter was fixing a roof, unfortunately he fell off and sustained facial injuries. On examination he has a step deformity in the mandible and cant chew. There is also Coleman’s sign
a. What’s your diagnosis?
Answer:
Fracture of the mandible — likely parasymphysis region, indicated by step deformity and Coleman’s sign.
Explanation:
Step deformity and inability to chew are classic signs of mandibular fracture.
Coleman’s sign refers to a sublingual hematoma, which is almost pathognomonic for a parasymphysis mandibular fracture, not a basilar skull fracture.
Battle’s sign (bruising over mastoid) is the one associated with basilar skull fracture — not applicable here.
b. What investigations would you employ?
Answer:
Orthopantomogram (OPG): First-line for visualizing mandibular fractures.
Non-contrast CT scan of facial bones: For detailed assessment of fracture lines and displacement.
CT Head (if neurological symptoms or high-impact trauma): To rule out intracranial injury.
Explanation:
OPG gives a panoramic view of the mandible. CT is essential for surgical planning and assessing complex fractures. Head CT is reserved for suspected brain injury.
c. What are your treatment options?
Answer:
Airway and neurological assessment: Always first priority in facial trauma.
Open Reduction and Internal Fixation (ORIF): Preferred for displaced or unstable fractures.
Maxillomandibular Fixation (MMF): May be used adjunctively to restore occlusion.
Explanation:
Treatment aims to restore function, occlusion, and aesthetics. ORIF is standard for most displaced mandibular fractures.
d. What are the complications?
Answer:
Early: Airway compromise, bleeding, inferior alveolar nerve injury.
Intermediate/Late: Malocclusion, non-union, infection (osteomyelitis), TMJ dysfunction.
If head trauma is present: Risk of CSF leak, meningitis, cranial nerve injury (but not indicated by Coleman’s sign).
Explanation:
Mandibular fractures can affect both function and aesthetics. Neurological complications arise only if associated head trauma is confirmed.
Q6. A 25 year old HIV positive patient presents with purple/ black lesions on the gingiva and hard palate. This lesion easily bleeds. Generally he is ill looking and not on HAART. These same lesions appear on the nose and on the limbs
a. What’s the diagnosis?
Answer: Kaposi's Sarcoma (KS).
Explanation: The presentation is classic for AIDS-associated Kaposi's Sarcoma: HIV+ patient not on HAART (severe immunosuppression), purple/black lesions, location on palate and skin, and bleeding tendency.
b. What advise can you give this patient?
Answer:
Urgently recommend starting HAART (HIV treatment). This is the most critical step.
Explain that controlling the HIV virus will help treat these lesions.
Advise on good oral hygiene to reduce bleeding and infection.
Encourage referral to an oncologist for management of the Kaposi's Sarcoma.
Explanation: The root cause is uncontrolled HIV. Immune reconstitution with HAART is the cornerstone of management.
c. What investigations would you order?
Answer:
Incisional Biopsy: For histopathological confirmation of Kaposi's Sarcoma.
CD4 Count and HIV Viral Load: To assess the degree of immunosuppression.
Oncological Staging: (e.g., CT chest/abdomen) to check for internal involvement.
Explanation: Biopsy is needed for diagnosis. HIV labs guide therapy. Staging determines the extent of disease.
d. Give the treatment options
Answer:
Systemic:
Initiation of HAART.
Chemotherapy (e.g., liposomal doxorubicin) for widespread disease.
Local (for symptomatic oral lesions):
Intralesional Chemotherapy (vinblastine).
Surgical Excision.
Radiotherapy.
Explanation: Treatment is multifaceted. HAART addresses the cause. Local and systemic therapies treat the KS itself.
Q7. A 48 year old patient presents with a swollen parotid gland of 5 year duration. Its non- tender, it measures about 8 cm in diameter
a. What’s the diagnosis?
Answer: Pleomorphic adenoma (Benign mixed tumor).
Explanation: The most common benign parotid tumor. It presents as a slow-growing, painless, firm solitary mass.
b. List the rule of 80s
Answer:
80% of parotid tumors are benign.
80% of benign parotid tumors are pleomorphic adenomas.
80% of parotid tumors occur in the superficial lobe.
<10% of pleomorphic adenomas may become malignant if left untreated for long periods.
Explanation: This is a classic surgical mnemonic describing the epidemiology of parotid tumors.
c. Treatment options
Answer: Superficial or total parotidectomy with careful dissection and preservation of the facial nerve.
Explanation: Surgical excision with a margin of normal tissue is curative. The facial nerve must be identified and preserved to prevent paralysis.
Q8. A 70 year old patient presents with a tumor on the left posterior aspect of the tongue. It measures 4 cm, the ipsilateral jugulodigastric lymphadenopathy measures 4cm. The nose is patent on that side and can’t hear well on the same side. There is ulceration on the tongue with fumgating and foul smell. He used to smoke 6 packets of cigarettes per week.
a. What’s the diagnosis?
Answer: Squamous Cell Carcinoma of the tongue (late stage).
Explanation: The location, ulceration, fungation, foul smell, and history of heavy smoking are classic for oral cancer. The large nodal metastasis confirms advanced disease.
b. How can you stage this tumor?
Answer: Using the TNM Staging System (Tumor, Node, Metastasis).
T: Tumor is >2cm but ≤4cm = T2 (or possibly T3 if depth of invasion criteria are met).
N: Single ipsilateral node >3cm but ≤6cm = N2b.
M: No evidence of distant metastasis = M0.
Explanation: This would be at least Stage IVA (T2 N2b M0 or T3 N2b M0) due to the large nodal disease.
c. Investigations
Answer:
Incisional Biopsy of the tongue lesion (definitive diagnosis).
CT Scan with contrast of Neck, Chest, Abdomen: For staging (TNM) and to check for distant metastases.
Panendoscopy (direct laryngoscopy, esophagoscopy, bronchoscopy) to rule out second primary tumors.
Explanation: Biopsy confirms cancer, while imaging determines the stage and spread, which guides treatment.
d. Treatment options
Answer: Multimodal therapy is required for advanced disease.
Primary Treatment: Surgical resection (e.g., hemiglossectomy) with therapeutic neck dissection (for the N2 node), followed by post-operative radiotherapy (or chemoradiotherapy for positive margins/extranodal extension).
Palliative Care: If the cancer is inoperable or the patient refuses surgery.
Explanation: Surgery aims to remove all visible disease, while adjuvant radiotherapy treats microscopic residual disease.
Q9. A 3 year old patient presents with a swelling on the right mandible and maxilla. He has organomegaly, irritable and has fever and weight loss
a. What’s the differential diagnosis?
Answer:
Langerhans Cell Histiocytosis (e.g., Hand-Schüller-Christian disease): Top differential.
Leukemia/Lymphoma: Can present with oral swellings, organomegaly, and systemic symptoms.
Metastatic Neuroblastoma.
Osteomyelitis.
Explanation: The triad of bony lesions (mandible/maxilla), organomegaly, and systemic symptoms (fever, weight loss) is highly suggestive of a systemic neoplastic or histiocytic process like LCH.
b. Investigations
Answer:
CBC with differential: To check for abnormal cells (blasts) suggestive of leukemia.
Skeletal Survey (X-rays): To look for other classic bony lesions (e.g., "punched-out" lesions in skull).
Biopsy of the jaw lesion: For definitive histopathological diagnosis (e.g., finding Birbeck granules for LCH).
CT/MRI of head, neck, abdomen: To assess full extent of disease.
Explanation: A biopsy is crucial for a definitive diagnosis, while imaging and blood tests help assess the disease's extent.
c. Treatment options
Answer: Treatment is based on the definitive diagnosis.
For LCH: Treatment can range from observation for isolated disease to chemotherapy (e.g., vinblastine/prednisone) for multisystem disease.
For Leukemia: Urgent referral for systemic chemotherapy.
Explanation: Management is entirely dependent on the underlying pathology, which is why biopsy is essential.
d. What questions would you ask the parents?
Answer:
"Has he had any skin rashes, especially on the scalp or in the diaper area?" (Common in LCH)
"Has he been bruising easily or bleeding more than usual?" (Suggests bone marrow involvement)
"Has he been drinking a lot more water and urinating frequently?" (Diabetes insipidus in LCH)
"Any history of eye bulging or ear discharge?" (Orbital and temporal bone involvement in LCH)
"Any similar history of cancer in the family?" (Though most are sporadic)
Explanation: These questions aim to identify classic extra-osseous manifestations of systemic diseases like LCH.
Q10. Patient comes to you 8 weeks after tooth extraction. He has discharging fistula on the right mandible. Trismus and foul smell. X-ray shows moth eaten appearance. He tells you that he is having difficulties eating
a. differential diagnosis
Answer:
Chronic Osteomyelitis: Most likely diagnosis.
Osteoradionecrosis (if history of radiotherapy).
Bisphosphonate-Related Osteonecrosis of the Jaw (BRONJ).
Malignancy (e.g., squamous cell carcinoma arising in a chronic fistula).
Explanation: The history of a prior extraction acting as a nidus for infection, chronic discharging sinus, trismus, foul odor, and "moth-eaten" radiograph are hallmark signs of chronic osteomyelitis.
b. Investigations
Answer:
CT Scan of the mandible: To assess the full extent of bony destruction, sequestrum (dead bone), and involucrum (new bone formation).
Culture and Sensitivity: Swab of the fistula tract or deep tissue sample to identify the causative organism(s) and guide antibiotic therapy.
Biopsy: To rule out malignancy if the presentation is atypical.
Explanation: Imaging defines the bony pathology, while microbiology guides targeted antibiotic treatment.
c. Treatment options
Answer:
Culture-directed long-term IV antibiotics (often 4-6 weeks).
Surgical Debridement/Sequestrectomy: Removal of all necrotic and infected bone until healthy, bleeding bone is encountered.
Reconstruction: May be necessary later for large bony defects after the infection is fully eradicated.
Explanation: Treatment requires a combination of surgical removal of the diseased bone and prolonged antibiotic therapy.
d. complications
Answer:
Pathological fracture of the mandible due to bony weakening.
Spread of infection to surrounding soft tissues or fascial spaces.
Chronic pain and disfigurement.
Malignant transformation (Marjolin's ulcer) in a long-standing fistula (rare).
Explanation: If left untreated, the infection can lead to catastrophic breakdown of the jawbone and surrounding structures.
1. a) Identify the following structures and label them (9):
(Since the diagram is not visible, this is a common example based on standard ENT diagrams)
A typical diagram for this mark allocation would be of the tympanic membrane (eardrum). The structures to label are often:
Pars Tensa
Pars Flaccida
Umbo
Handle of Malleus
Lateral Process of Malleus
Cone of Light
Annulus
Short Process of Incus (sometimes visible)
Promontory (in the background)
b) Name the diagnostic tool ideal for evaluating all the structure highlighted if you were in the outpatient department. (1)
Answer: Otoscope.
Explanation: An otoscope is the primary tool used in an outpatient setting to visually evaluate the external auditory canal and the tympanic membrane, including all its structures.
2. a) Identify the following structures and label them(6)
(Since the diagram is not visible, this is a common example)
A typical diagram for this mark allocation would be of the larynx. The structures to label are often:
Epiglottis
Arytenoid Cartilage
Vocal Folds (True Vocal Cords)
Vestibular Folds (False Vocal Cords)
Thyroid Cartilage
Cricoid Cartilage
b) Name the diagnostic procedure ideal for evaluating all the structure highlighted if you were in the outpatient department (1)
Answer: Flexible Laryngoscopy (or Nasoendoscopy).
Explanation: A flexible laryngoscope passed through the nose allows for excellent visualization of the entire larynx and its structures in a conscious patient in an outpatient clinic.
c) List 3 disadvantages of the procedure mentioned above(3)
Answer:
Patient Discomfort: It can cause gagging, nausea, and a feeling of discomfort or anxiety in the patient.
Limited Operative Capability: It is primarily a diagnostic tool; it does not allow for surgical intervention like a rigid scope under general anesthesia.
Cost and Maintenance: The equipment (flexible scope and light source) is expensive to purchase and requires specialized, costly cleaning and maintenance to avoid damage and cross-infection.
(Other valid disadvantages: Requires local anesthetic spray which can have side effects; view can be obstructed by secretions or anatomical variations; provides a 2D view).
3. a) Identify the following structures and label them (8)
(Since the diagram is not visible, this is a common example)
A typical diagram for this mark allocation would be a coronal section of the ear. The structures to label are often:
Pinna (Auricle)
External Auditory Canal
Tympanic Membrane
Malleus
Incus
Stapes
Cochlea
Vestibular Nerve / Cochlear Nerve
Eustachian Tube
(Any 8 of these or similar)
b) Label with X the common site for cholesteatoma in the diagram(2)
Answer: The most common site for acquired cholesteatoma is the attic (epitympanum) region of the middle ear, which is located superior to the tympanic membrane.
Explanation: Cholesteatomas most frequently originate in the pars flaccida portion of the eardrum (Shrapnell's membrane) and extend into the epitympanic attic.
4. A 48 year old male presented to the ENT clinic with a swelling in the right upper neck of 2 months duration. The swelling was non-tender, firm and progressively increased in size. After a complete ENT examination there was a right conductive hearing loss and a retracted tympanic membrane. Also, there was right vocal fold paralysis and on swallowing there was also some nasal regurgitation. The patient gave a history of an offensive sanguineous post nasal discharge: (10)
a) Give the diagnosis and reasons (2)
Answer: Diagnosis: Nasopharyngeal Carcinoma (NPC).
Reasons:
Swelling in the upper neck: Metastatic lymphadenopathy is a very common presenting sign.
Conductive hearing loss & retracted TM: Caused by serous otitis media due to Eustachian tube blockage by the tumor in the nasopharynx.
Vocal fold paralysis: Indicates involvement of the Vagus nerve (CN X), likely by the tumor at the skull base (parapharyngeal space).
Nasal regurgitation: Suggests involvement of the Glossopharyngeal nerve (CN IX) affecting the stylopharyngeus muscle.
Offensive, sanguineous post nasal discharge: Classic symptom of an ulcerating, bleeding tumor in the nasopharynx.
b) Explain the following manifestations (3)
-Right vocal cord paralysis: The tumor extends laterally to the parapharyngeal space and invades the skull base, affecting the Vagus nerve (CN X) which provides motor supply to the laryngeal muscles via the Recurrent Laryngeal Nerve.
-Nasal regurgitation: The tumor affects the Glossopharyngeal nerve (CN IX), which innervates the stylopharyngeus muscle, a key muscle for elevating the palate during swallowing. Weakness leads to nasal regurgitation.
-Right conductive hearing loss: The tumor in the nasopharynx obstructs the pharyngeal opening of the Eustachian tube, preventing pressure equalization in the middle ear. This leads to serous otitis media and a conductive hearing loss.
c)What investigation will you order for this patient (3)
Answer:
Flexible Nasoendoscopy and Biopsy: This is the crucial first step to directly visualize the mass in the nasopharynx and obtain a tissue diagnosis.
MRI with contrast of the Head and Neck: The best imaging to evaluate the full extent of the primary tumor, its invasion into the skull base/parapharyngeal space, and its relationship to nerves and vessels.
Audiogram: To formally confirm and quantify the conductive hearing loss.
d) Treatment plan for the patient (2)
Answer: The mainstay of treatment for NPC is radiotherapy, often combined with chemotherapy (chemoradiation) due to its high radiosensitivity and the advanced stage suggested by the cranial nerve palsies.
Explanation: Surgery is not a primary option due to the difficult anatomical location. Radiotherapy is highly effective, with chemotherapy used for advanced or metastatic disease.
5. A 50 year old female underwent surgery to remove a swelling in the neck that moved up and down with deglutition. Following surgery she started to complain of a very weak voice and choking especially when drinking fluids. 2 weeks later the condition improved and a month later she had no symptoms (10)
a) Give the diagnosis and reasons (2)
Answer: Diagnosis: Transient injury to the Superior Laryngeal Nerve (external branch) during thyroidectomy.
Reasons: The swelling moving with swallowing is classic for a thyroid nodule. The surgery was therefore a thyroidectomy. The weak voice (loss of vocal projection and power) and choking (due to slight aspiration) are classic for injury to the External Laryngeal Nerve, which innervates the cricothyroid muscle (a tensor of the vocal cord).
b) Explain the following manifestations (3)
-swelling moving up and down with deglutition: The thyroid gland is attached to the larynx via a fascial sheath (ligament of Berry), so it moves with the larynx during swallowing.
-very weak voice and choking: The injured External Laryngeal nerve causes paralysis of the cricothyroid muscle. This muscle tenses the vocal cord for high-pitched sounds and strong voice projection. Its weakness leads to a breathy, weak voice and slight glottic incompetence, causing mild aspiration, especially of liquids.
-improved condition a month later: The nerve injury was likely due to traction, compression, or thermal damage (neuropraxia) during surgery rather than a complete transection. Nerves can recover from neuropraxia over a period of weeks.
c)What investigation will you order for this patient (3)
Answer:
Flexible Laryngoscopy: To directly visualize the vocal cords. In external laryngeal nerve palsy, the cord may appear slightly bowed and at a lower level.
Stroboscopy: To assess the vibratory function of the vocal cords, which is often impaired in this condition.
Voice Assessment (by a Speech Therapist): To objectively evaluate the vocal parameters.
6. A 3 years old toddler presents with a history hoarseness of voice, and occasional episodes of cough. He has been treated severally with bronchodilators but his condition keeps recurring after a short lived improvement (10)
a) 3 differential diagnosis
Answer:
Laryngopharyngeal Reflux (LPR): The most common cause of chronic hoarseness in children. Stomach acid irritates the larynx.
Laryngeal Papillomatosis (Recurrent Respiratory Papillomatosis): Caused by HPV, leading to wart-like growths on the vocal cords causing hoarseness and airway symptoms.
Vocal Cord Nodules: From vocal abuse (excessive crying, shouting), but less common in very young toddlers.
Foreign Body Aspiration: A chronic cough that doesn't resolve and is misdiagnosed as asthma is a classic presentation for a retained airway foreign body (e.g., peanut).
b) 2 investigation tools
Answer:
Flexible Laryngoscopy: The gold standard investigation to directly visualize the larynx, vocal cords, and subglottis for signs of reflux, nodules, papillomas, or other pathology.
24-hour pH Impedance Study: To objectively diagnose laryngopharyngeal reflux, especially if laryngoscopy shows signs of reflux laryngitis.
(Other: Lateral neck X-ray to look for a radio-opaque foreign body or steeple sign of croup).
7. For hematoma auris (10)
a) Describe this condition (3)
Answer: Hematoma auris, commonly known as a cauliflower ear, is a condition where blood collects in a potential space between the auricular cartilage and its overlying perichondrium as a result of shearing trauma.
Explanation: The trauma causes the perichondrium, which supplies blood to the avascular cartilage, to separate. This leads to a subperichondrial hematoma.
b) Mention 2 causes (2)
Answer:
Blunt trauma to the ear, commonly seen in contact sports like wrestling, boxing, or rugby.
Shearing injuries from accidents, such as a side-impact car crash or a fall where the ear is scraped or twisted violently.
c) Treatment principles (3)
Answer:
Aspiration or Incision and Drainage: The hematoma must be completely evacuated under aseptic conditions to prevent re-accumulation.
Application of a Pressure Dressing: A well-molded, compressive dressing is applied to the contours of the ear to obliterate the dead space and coapt the perichondrium back onto the cartilage.
Administration of Antibiotics: Prophylactic antibiotics are given to prevent secondary infection (perichondritis), which can destroy the cartilage.
d) Complication of Hematoma auris (2)
Answer:
Cauliflower Ear Deformity: The organized hematoma causes fibrosis and abnormal new cartilage formation, resulting in a permanent, disfiguring deformity.
Perichondritis: Infection of the perichondrium, which can lead to cartilage necrosis and loss of the ear structure.
8. A 10-year-old child was having a right mucopurulent otorrhoea for the last 4 years. A week ago he became dizzy with a whirling sensation, nausea, vomiting and nystagmus to the opposite side; his deafness became complete and his temperature was normal. Three days later he became feverish, irritable and continuously crying apparently from severe headache. Also he had some neck retraction. The child was not managed properly and died by the end of the week. [20]
1. What is the probable diagnosis?
Answer: Chronic Suppurative Otitis Media (CSOM) with complications, specifically:
Labyrinthitis: Causing the initial vestibular symptoms.
Meningitis and likely temporal lobe brain abscess: Causing the later neurological symptoms and death.
Explanation: The history of long-standing ear discharge (CSOM) is the source of the infection, which eroded into the inner ear and then intracranially.
2. Explain the above manifestations in the disease process
Answer:
Right mucopurulent otorrhoea for 4 years: Indicates a chronic middle ear and mastoid infection (CSOM), often with cholesteatoma which is erosive.
Dizziness, whirling sensation, nausea, vomiting, nystagmus: Symptoms of labyrinthitis, where the infection erodes through the bony labyrinth into the inner ear.
Deafness became complete: indicates destruction of the cochlea (labyrinthitis) or the cochlear nerve.
Feverish, irritable, severe headache, neck retraction: Classic signs of meningitis (inflammation of the meninges). Neck retraction is a sign of meningeal irritation.
Died by the end of the week: The infection spread intracranially, causing fatal meningitis and/or brain abscess.
3. Further examination &/or investigations
Answer:
Clinical Examination: Full neurological examination, checking for meningeal signs (Kernig's sign, Brudzinski's sign), and otoscopic examination.
Imaging:
High-Resolution CT Temporal Bones: To identify bony erosion of the labyrinth, tegmen tympani, or sigmoid sinus plate.
CT or MRI Brain with Contrast: To identify intracranial complications such as meningitis, epidural abscess, subdural empyema, cerebellar or temporal lobe brain abscess.
Laboratory Tests:
Lumbar Puncture for CSF analysis (to confirm meningitis, but only after ruling out raised ICP with imaging).
Culture and Sensitivity of the ear discharge.
9. Match the items in column A with those of column B (10)
Answer:
Sound vibrations are picked up by → d) The pinna
The pinna directs these sound vibrations into → a) The ear canal
The sound vibrations reach the ___ and make it vibrate → f) membrane of the eardrum
The vibration of the eardrum causes the ___ to vibrate → b) ossicles
The ossicles vibrate and cause the ___ to vibrate → i) fluid in the inner ear (or the oval window, which transfers energy to the fluid)
These vibrations are picked up by the hair cells in ___. → h) The cochlea
These hair cells change the vibrations into ___ → c) nerve signals
These nerve signals travel along the ___ to the brain → e) hearing nerve (Cochlear nerve)
In ___ the nerve signals are interpreted into the sounds we hear → g) the brain
The secondary tympanic membrane is found in → j) The medial wall of the middle ear (It covers the round window)
Explanation: This describes the pathway of sound from the external environment to its perception in the brain, a fundamental process in auditory physiology. The secondary tympanic membrane (round window membrane) is a key structure that allows fluid within the cochlea to move.
Q1. Concerning the universal notation:
a. 17 is upper left third molar tooth
b. 17 is lower left third molar tooth
c. 32 is upper left third molar tooth
d. 32 is lower left central incisor tooth
✅ Correct Answer: b) 17 is lower left third molar tooth
Explanation: In the Universal Numbering System, tooth #1 is the upper right third molar. The count continues across the upper arch to #16 (upper left third molar), then down to #17 (lower left third molar), and across the lower arch to #32 (lower right third molar).
Q2. The upper left second deciduous molar in FDI notation is:
a. 14
b. 65
c. 54
d. 24
✅ Correct Answer: b) 65
Explanation: In the two-digit FDI system, the first digit represents the quadrant (5 = primary upper left, 6 = primary upper right, 7 = primary lower left, 8 = primary lower right). The second digit represents the tooth (4 = second molar). Therefore, the upper left second deciduous molar is 65.
Q3. Trimodal distribution of trauma deaths:
a. Trauma deaths show a bimodal distribution
b. Within the first 24 hours, Multiple Organ Failure is the leading cause of mortality
c. Immediately cause include(major internal injury, heart and brain injury)
d. Death is inevitable
✅ Correct Answer: c) Immediately cause include(major internal injury, heart and brain injury)
Explanation: The classic trimodal distribution describes peaks of death: 1) Immediately (seconds to minutes) from major vascular or CNS injury; 2) Early (minutes to hours) from internal hemorrhage; 3) Late (days to weeks) from sepsis or organ failure.
Q4. Advanced trauma life support (ATLS) concept
a. A detailed history is essential to begin the evaluation
b. Treat the greatest threat to life first
c. “ABCDE” approach may not be necessary
d. The lack of a definitive diagnosis should impede the application of an indicated Treatment
✅ Correct Answer: b) Treat the greatest threat to life first
Explanation: The core principle of ATLS is to identify and treat life-threatening conditions in order of priority using the ABCDE (Airway, Breathing, Circulation, Disability, Exposure) approach, without waiting for a definitive diagnosis.
Q5. Classification of mandibular fractures:
a. Angle fracture is the most common accounting for 24.5%
b. Posterior open bite is common
c. Unrestricted mouth opening is a feature
d. Condylar fractures are the most common accounting for 29.1%
✅ Correct Answer: d) Condylar fractures are the most common accounting for 29.1%
Explanation: The condylar process is the most common site for mandibular fractures, followed by the angle and the body. Restricted mouth opening (trismus), not unrestricted, is a common feature.
Q6. Burkitts Lymphoma:
a. Is Hodgkin’s Lymphoma
b. Can be derived from B- or T cells
c. Is a non-malignant tumor
d. Treatment is by surgery
✅ Correct Answer: d) Treatment is by surgery (Note: This is a poorly worded question. The best available answer is d, but standard treatment is high-dose chemotherapy, with surgery often used for biopsy/debulking.)
Explanation: Burkitt lymphoma is a high-grade B-cell non-Hodgkin lymphoma. While chemotherapy is primary, surgical intervention is a critical part of the management, especially for abdominal tumors or obtaining a biopsy.
Q7. Purpose of a biopsy:
a. Helps in verifying a clinical impression
b. May not help in the formulation of a treatment plan in evaluating treatment
c. Aids to arrive at an early and accurate diagnosis in 50% of cases
d. May not help to determine whether a disease is a local or a systemic process
✅ Correct Answer: a) Helps in verifying a clinical impression
Explanation: The primary purpose of a biopsy is to obtain a definitive histopathological diagnosis, which verifies or refutes the clinical impression and is absolutely essential for formulating the correct treatment plan.
Q8. Treatment of oral tumors:
a. Radiotherapy is a primary treatment modality in all cases
b. Status of the dentition has significant effect on post-treatment quality of life among patients
c. In children don’t extract mobile primary teeth that are expected to exfoliate during treatment
d. Radiotherapy- neoadjuvant is(after surgery/ irradiation)
✅ Correct Answer: b) Status of the dentition has significant effect on post-treatment quality of life among patients
Explanation: The health and status of the dentition critically impact functions like chewing and speech after cancer treatment, severely affecting quality of life. Radiotherapy is not first-line for all cases, and neoadjuvant means before primary treatment.
Q9. Concerning fibrous dysplasia
a. Teeth involved in the lesion usually remain firm but may be displaced
b. The chief radiograph is feature is a "fine-glass" opacification
c. Treatment is by radiotherapy
d. Polyostotic Fibrous dysplasia may involve one bone
✅ Correct Answer: a) Teeth involved in the lesion usually remain firm but may be displaced
Explanation: Teeth within fibrous dysplasia are typically vital and firm but are often displaced by the expanding bone. The radiographic feature is "ground-glass" (not "fine-glass"). Radiotherapy is contraindicated due to sarcoma risk. Polyostotic means multiple bones.
Q10. Oral Kaposi's sarcoma:
a. Iatrogenic type is related to loss of humoral immunity
b. Aids related runs a rapid course with good prognosis
c. In classic type oral lesions are frequently seen
d. Endemic/African type is divided into four subtypes
✅ Correct Answer: d) Endemic/African type is divided into four subtypes
Explanation: The African/Endemic type is classified into nodular, florid, infiltrative, and lymphadenopathic subtypes. The iatrogenic type is related to cell-mediated immunity (e.g., transplant patients). AIDS-related KS has a poor prognosis.
Q11. Anterior epistaxis can be controlled by all the following means EXCEPT:
a. Embolization
b. Anterior nasal packs
c. Insertion and inflation of Foleys Catheter in the posterior nares
d. Cautery of the bleeding point
✅ Correct Answer: c) Insertion and inflation of Foleys Catheter in the posterior nares
Explanation: 🚫 Why Foley catheter in posterior nares is incorrect:
• This technique is used for posterior epistaxis, not anterior.
• Posterior bleeds arise deeper (e.g., Woodruff’s plexus) and may require posterior packing or balloon tamponade, like a Foley catheter.
• Using it for anterior bleeds is unnecessary and inappropriate.
Q12. Antibiotic used to treat Quinsy:
a. Ciprofloxacin
b. Cloxacillin
c. Clindamycin
d. All the above
✅ Correct Answer: d) All the above
Explanation: Quinsy (peritonsillar abscess) is often polymicrobial. Broad-spectrum coverage is required, and all listed antibiotics (or combinations thereof) can be appropriate choices depending on local guidelines and severity.
Q13. In a child with unilateral otorrhea, all of the following can be considered as a cause EXCEPT:
a. Swimmer’s ear (Otitis Externa)
b. Serous otitis media
c. Chronic suppurative otitis media
d. Otomycosis
✅ Correct Answer: b) Serous otitis media
Explanation: Serous otitis media (Otitis Media with Effusion) presents with fluid in the middle ear without perforation or discharge (otorrhea). All other options directly cause unilateral ear drainage.
Q14. Cause of mixed hearing loss:
a. Temporal bone trauma
b. Temporal bone malignancy
c. HIV
d. Ototoxicity
✅ Correct Answer: a) Temporal bone trauma
Explanation: Temporal bone fractures can simultaneously disrupt the ossicular chain (causing conductive loss) and damage the cochlear nerve or inner ear (causing sensorineural loss), resulting in a mixed hearing loss.
Q15. The following can cause hot potato speech EXCEPT:
a. Laryngeal papilloma
b. Nasopharyngeal carcinoma
c. Peritonsillar abscess
d. Retropharyngeal abscess
✅ Correct Answer: a) Laryngeal papilloma
Explanation: Laryngeal papilloma affects the vocal cords, leading to hoarseness or dysphonia, not the muffled resonance typical of hot potato speech. It’s a voice disorder, not a resonance or articulation issue caused by oropharyngeal space compromise.
Q16. Which of the following is a branch of the facial nerve:
a. Lingual nerve (Branch of V3)
b. Infraorbital nerve (Branch of V2)
c. Nerve to stapedius muscle
d. Nerve to mylohyoid (Branch of V3)
✅ Correct Answer: c) Nerve to stapedius muscle
Explanation: The facial nerve (CN VII) gives off several branches within the temporal bone, including the nerve to the stapedius muscle, which dampens loud sounds.
Q17. Which is NOT true concerning Aural polyp:
a. Causes ear obstruction
b. Caused by Foreign body
c. Can be sign of malignancy
d. Is fleshy and pale in un safe ear
✅ Correct Answer: d) Is fleshy and pale in un safe ear
Explanation: In an unsafe ear (indicating underlying cholesteatoma or malignancy), an aural polyp is typically red and friable (bleeds easily). A pale, fleshy polyp is more characteristic of a benign inflammatory process in a "safe" ear.
Q18. Myringotomy may be beneficial for children with the following EXCEPT:
a. Persistent otitis media
b. Speech delay with middle ear diffusion
c. Recurrent otitis media
d. Acute Mastoiditis
✅ Correct Answer: d) Acute Mastoiditis
Explanation: Acute mastoiditis is a serious complication of otitis media that requires urgent surgical intervention (mastoidectomy) and IV antibiotics. A simple myringotomy is insufficient to drain the mastoid air cells.
Q19. The Eustachian Tube:
a. is about 2.6 cm long in adults
b. has a longer cartilaginous portion than the auditory canal
c. the bony portion forms the outer two thirds
d. has respiratory epithelium
✅ Correct Answer: d) has respiratory epithelium
Explanation: The Eustachian tube is lined with ciliated, pseudostratified columnar (respiratory) epithelium. The cartilaginous portion makes up the inner two-thirds, not the bony portion.
Q20. The following are acute complications of rhinosinusitis EXCEPT:
a. Subperiosteal abscess
b. Cavernous sinus thrombosis
c. Periorbital cellulitis
d. Mucocele
✅ Correct Answer: d) Mucocele
Explanation: A mucocele is an chronic complication that forms from the slow, expansive accumulation of mucus due to sinus ostial obstruction. The other options are acute, infectious complications.
Q1. Ossifying fibroma:
a. A malignant bone neoplasm that has potential for excessive growth, bone destruction and recurrence. False
b. Maxillary lesion tends to involve antrum True
c. There is no evidence that ossifying fibromas ever undergo malignant change True
d. Surgical removal using curettage or enucleation is treatment of choice True
Explanation:
a) Ossifying fibroma is a benign fibro-osseous lesion.
b) In the maxilla, it commonly expands into and involves the maxillary sinus (antrum).
c) Malignant transformation is not a feature of ossifying fibroma.
d) Conservative surgical enucleation or curettage is the standard treatment.
Q2. Ameloblastomas:
a. Are the least common clinically significant benign odontogenic tumors False
b. Are slow-growing tumors True
c. Frequently present resorption of the roots of teeth adjacent to the tumor is seen True
d. Treatment ranges from conservative curettage to watchful neglect False
Explanation:
a) Ameloblastoma is the most common significant benign odontogenic tumor.
b) They are typically slow-growing but locally aggressive.
c) Root resorption of adjacent teeth is a common radiographic feature.
d) Watchful neglect is never appropriate. Treatment is surgical, ranging from marginal resection for small lesions to segmental resection for large ones due to high recurrence with simple curettage.
Q3. Mucoepidermoid carcinoma:
a. If the trigeminal nerve is involved, the patient may exhibit a facial palsy False
b. High grade lesions should be treated aggressively to avoid recurrence True
c. Neck dissections may not be performed for lymph node removal and staging in high-grade lesions False
d. Is the most common malignant tumor of the salivary glands in children True
Explanation:
a) The facial nerve (CN VII) is the nerve of concern in the parotid. Trigeminal nerve (CN V) involvement would not cause facial palsy.
b) High-grade tumors behave aggressively and require wide resection, often with adjuvant radiotherapy.
c) Neck dissection is absolutely indicated for high-grade lesions due to the high risk of nodal metastasis.
d) Mucoepidermoid carcinoma is indeed the most common salivary gland malignancy in children.
Q4. Pleomorphic adenoma:
a. Originates from ductal and myoepithelial elements. True
b. Male-to-female ratio of 3:2. False
c. the most common intraoral site is the anterior. False (Incomplete statement, but likely false as the parotid is most common)
Explanation:
a) It is a "mixed tumor" histologically, arising from both ductal and myoepithelial cells.
b) The ratio is reversed; it is more common in females (closer to a 3:2 female:male ratio).
c) The most common site is the parotid gland (~80%). The most common intraoral site is the palate, not the anterior region.
Q5. Carcinoma of the tongue:
a. Its more common in men True
b. The anterior lateral tongue is a common site True
c. Treatment of stage III on the tongue is total glossectomy False
d. Stage II is T2 N1M1 False
Explanation:
a) There is a strong male predominance due to risk factors like tobacco and alcohol.
b) The lateral border of the tongue is the most frequent site.
c) Stage III may be treated with hemiglossectomy or partial glossectomy combined with neck dissection and/or radiotherapy. Total glossectomy is typically reserved for very advanced (T4) lesions.
d) Stage II is defined as T2 N0 M0. The presence of nodal (N1) or distant (M1) metastasis immediately places the cancer in Stage IV.
Q6. Concerning biopsies:
a. Exfoliative cytology is only for surface cells True
b. Submit x-ray (or radiologic findings) to pathologist for osseous lesions True
c. Remove tissue from the centre or active area rather than the periphery False
d. The commonest fixative used is normal saline False
Explanation:
a) Exfoliative cytology collects cells that are shed from a surface.
b) Radiographs provide crucial context for the pathologist interpreting bony lesions.
c) A biopsy should include the interface between the lesion and normal tissue, as the center may be necrotic.
d) The standard fixative is 10% neutral buffered formalin. Saline is used to keep tissue moist for fresh samples, not for fixation.
Q7. Concerning Le Fort II fractures:
a. Clinical features include a step on the infra orbital rim and at the buccal sulcus above True
b. Anterior open bite is a feature True
c. Occipital mental standard view (Water's view) is ideal True
d. Diplopia may occur after fractures of the middle third of the facial skeleton True
Explanation:
a) A step deformity on the infraorbital rim is a key sign of a Le Fort II (pyramidal) fracture.
b) The disimpacted maxilla can rotate downward and backward, causing an anterior open bite.
c) The Waters' view (occipitomental) is the best plain radiograph to visualize the midface and sinuses for Le Fort fractures.
d) Diplopia (double vision) is a common complication due to orbital floor involvement or extraocular muscle entrapment.
Q8. Mandibular fractures:
a. Most common facial fractures True
b. Midline shift is rare False
c. Use extra osseous wires False
d. Should accomplish several goals restoration of occlusion, function and facial Balance True
Explanation:
a) The mandible is the most commonly fractured bone of the face.
b) Midline shift is a common finding in symphyseal or bilateral body fractures.
c) Modern treatment uses internal rigid fixation with plates and screws. Extra-osseous wiring is an outdated technique.
d) The primary goals of treatment are to restore pre-injury occlusion, function, and facial symmetry.
Q9. The following are causes of Otitis media with effusion:
a. HIV True
b. Allergic Rhinitis True
c. Down Syndrome True
d. Gastro esophageal reflux True
Explanation: All are correct. OME (fluid in the middle ear without infection) is caused by Eustachian tube dysfunction, which can be due to:
a) HIV: Immunocompromise leading to recurrent infections.
b) Allergic Rhinitis: Inflammation and edema blocking the tube.
c) Down Syndrome: Anatomical abnormalities and poor muscle tone.
d) Gastro esophageal reflux: Refluxate irritating the tube opening.
Q10. The following are found in the medial wall:
a. Facial canal False (Located in the posterior wall)
b. Pyramidal eminence False (Located in the posterior wall)
Explanation: The medial wall of the middle ear is also the lateral wall of the inner ear. Key structures include the promontory (basal turn of cochlea) and the oval and round windows. The facial canal and pyramidal eminence are located in the posterior wall.
Q11. The following are acute complications of rhinosinusitis:
a. Subperiosteal abscess True
b. Cavernous sinus thrombosis True
c. Periorbital cellulitis True
d. Mucocele False
Explanation:
a, b, c) These are all acute, infectious complications of rhinosinusitis.
d) A mucocele is a chronic complication resulting from long-term obstruction of a sinus ostium.
Q12. Skeletal framework of the nasal septum include the following:
a. Perpendicular plate of the ethmoid True
b. Quadrilateral plate of the ethmoid False (Not an anatomical term; likely a distractor)
c. Vomer True
d. Maxillary crest True
Explanation: The bony nasal septum is composed of the:
a) Perpendicular plate of the ethmoid bone (superiorly).
c) Vomer (inferiorly and posteriorly).
d) The crests of the maxillary and palatine bones (form the floor).
Q13. Ear cerumen:
a. produced from ceruminous glands in outer 1/3 of ear canal True
b. Dry wax is determined by a dominant gene False
c. Wet wax is determined by a recessive gene False
d. Wet wax is seen in Europeans and Africans True
Explanation:
a) Cerumen is a mixture of secretions from ceruminous and sebaceous glands in the outer cartilaginous portion.
b, c) The type of cerumen (wet vs. dry) is an autosomal recessive trait. Dry wax is recessive, wet wax is dominant.
d) Populations of African and European descent predominantly have the dominant wet, sticky cerumen.
Q14. Indications for Myringotomy:
a. Otitis media with Effusion (OME) that is persistent True
b. Persistent acute otitis media True
c. Glue ear (a synonym for OME) True
d. Eustachian Tube dysfunction True
Explanation: All are correct. Myringotomy with tube insertion is indicated to ventilate the middle ear and prevent fluid accumulation in cases of chronic Eustachian tube dysfunction and its consequences (OME, persistent infection).
Q15. Branches of Woodruff's plexus:
a. Sphenopalatine artery True
b. Greater palatine artery True
c. Ascending pharyngeal artery False
d. Posterior nasal artery True
Explanation: Woodruff's plexus is a vascular anastomosis on the posterior lateral nasal wall, primarily fed by the:
a) Sphenopalatine artery (terminal branch of maxillary artery).
b) Greater palatine artery (anastomoses upwards).
d) Posterior nasal artery (a branch).
c) The ascending pharyngeal artery is a branch of the external carotid that supplies the pharynx, not a primary contributor to Woodruff's plexus.
Q16. Subsites of the glottic region:
a. Posterior commissure False (Supraglottic)
b. Aryepiglottic folds False (Supraglottic)
c. Vallecula False (A site in the oropharynx/hypopharynx)
d. Ventricular bands (False vocal cords) False (Supraglottic)
Explanation: This question is tricky. All listed options are NOT glottic. The glottis consists only of the true vocal cords and the anterior and posterior commissures. The other structures are supraglottic or in other regions.
Q17. Regarding the process of decannulation:
a. Deliberate and temporal removal of a tracheostomy tube True
b. Reasons for tracheostomy resolved True
c. Tolerating cuff deflation for a minimum of 6 hrs False (Typically requires 24-48 hours)
d. Maintaining O₂ saturation True
Explanation:
a) Decannulation is the planned, temporary removal of the tube to assess readiness for permanent removal.
b) The original indication for the tracheostomy must be resolved.
c) The patient must tolerate cuff deflation and tube occlusion for a much longer period, often 24-48 hours, not just 6 hours.
d) The patient must maintain adequate oxygenation without the tracheostomy tube.
Q18. Regarding Tracheostomy in Intensive Care Unit:
a. Higher doses of sedation is required False
b. Preservation of cough reflexes False
c. More efficient pulmonary toilet True
d. Reduced duration of ventilation True
Explanation:
a) A key benefit is often that less sedation is needed as the patient is more comfortable than with an endotracheal tube.
b) A tracheostomy tube bypasses the upper airway and impairs the cough reflex and mucociliary clearance.
c) It allows for easier and more effective suctioning of secretions (pulmonary toilet).
d) It can facilitate weaning from the ventilator, potentially reducing the total duration of mechanical ventilation.
Q19. Regarding otomycosis, predisposing conditions include:
a. Long-term antibiotics True
b. Diabetes mellitus True
c. Steroid therapy True
d. Immune competence False
Explanation:
a, b, c) Antibiotics disrupt normal bacterial flora, diabetes provides a sugar-rich environment, and steroids are immunosuppressive; all predispose to fungal (otomycosis) overgrowth.
d) Immuno****compromise is a risk factor, not competence.
Q20. The common causes of epistaxis include:
a. Atherosclerosis True (Causes vessel fragility)
b. Foreign body in the nose True (Causes trauma and infection)
c. Anticoagulants True (Impair clotting)
d. Bleeding dyscrasias True (e.g., hemophilia)
Explanation: All are well-known causes of epistaxis.
Answer one question only from each specialty.
MAXILLOFACIAL - Choose One:
a. Sign and Symptoms of mandibular fractures. What are the treatment options?
Correct Answer / Key Points to Include:
Signs and Symptoms:
Pain and tenderness over the fracture site.
Malocclusion (inability to bite properly; the most pathognomonic sign).
Step deformity palpable at the inferior border of the mandible.
Ecchymosis (bruising) in the floor of the mouth (sublingual hematoma) or submental region.
Trismus (inability to open mouth fully).
Paraesthesia or anaesthesia of the lower lip (if the inferior alveolar nerve is injured).
Gingival or mucosal laceration adjacent to a tooth (indicating an open fracture).
Deviation of the jaw on opening (often seen in unilateral condylar fractures).
Treatment Options:
Closed Reduction and Intermaxillary Fixation (IMF):
Indication: Non-displaced, favourable fractures.
Methods: Arch bars, eyelet wires, or Ivy loops to wire the teeth together (maxilla to mandible) for 4-6 weeks.
Open Reduction and Internal Fixation (ORIF):
Indication: Displaced, unfavourable, comminuted, or edentulous fractures.
Methods: Surgical exposure of the fracture and stabilization using titanium mini-bone plates and screws or reconstruction plates via an intraoral or extraoral approach.
Supportive Care: Antibiotics (for open fractures), analgesics, and liquid/soft diet.
b. Ameloblastoma, signs and symptoms and treatment plan.
Correct Answer / Key Points to Include:
Signs and Symptoms:
Slow-growing, painless expansion of the jaw (initially asymptomatic).
Facial asymmetry and deformity as the tumor enlarges.
Loosening or displacement of teeth.
Paraesthesia of the lower lip (if in the mandible and nerve is involved).
Radiographic Features: Classically a multilocular "soap-bubble" or "honeycomb" radiolucent lesion. Root resorption of adjacent teeth is a common feature.
Treatment Plan:
Diagnostic Confirmation: Incisional biopsy for histopathological diagnosis.
Imaging: Orthopantomogram (OPG) and CT Scan to determine the exact size, extent, and cortical perforation.
Definitive Surgical Treatment: Due to its locally aggressive nature and high recurrence rate with conservative treatment:
Resection with 1.0 - 1.5 cm surgical margins is the gold standard.
This often requires a segmental mandibulectomy or maxillectomy.
Reconstruction: Immediate reconstruction is performed using a reconstruction plate or a vascularized free bone graft (e.g., fibula free flap).
Long-term Follow-up: Regular clinical and radiographic review for at least 10 years to monitor for recurrence.
EAR NOSE AND THROAT - Choose One:
a. JORRP (Juvenile Onset Recurrent Respiratory Papillomatosis)
Correct Answer / Key Points to Include:
Definition: A disease characterized by the growth of benign, recurrent papillomas (warts) in the respiratory tract, caused by the Human Papillomavirus (HPV), most commonly types 6 and 11.
Clinical Features:
Hoarseness, weak cry, and stridor (noisy breathing) are the most common initial symptoms.
May progress to airway obstruction and respiratory distress.
The larynx is the most common site, but disease can spread to the trachea, bronchi, and lungs.
Management:
Diagnosis: Direct laryngoscopy and biopsy.
Primary Treatment: Repeated surgical debridement using microdebriders or CO₂ laser ablation to remove papillomas and maintain a patent airway. The goal is disease control, not cure.
Adjuvant Therapy: Used for aggressive disease (e.g., Cidofovir - intralesional injection, Interferon).
Prognosis: Variable. Disease often regresses at puberty but can require numerous surgeries during childhood.
b. Indications and post operative care for tracheostomy
Correct Answer / Key Points to Include:
Indications:
Prolonged Mechanical Ventilation (e.g., >2 weeks intubation).
Upper Airway Obstruction (e.g., tumors, trauma, bilateral vocal cord paralysis, severe infection like Ludwig's angina).
Failed Intubation in an emergency.
Inability to Protect Airway or Manage Secretions (e.g., coma, neurological disorders, bulbar palsy).
Major Head & Neck Surgery (prophylactically).
Post-Operative Care:
Securing the Tube: The tracheostomy tube must be securely tied with trachy tapes to prevent accidental dislodgement (decannulation), especially in the first 48-72 hours before a tract has formed.
Suctioning: Regular, aseptic suctioning of the inner cannula and the trachea itself to remove secretions and maintain tube patency.
Humidification: Administering humidified oxygen/air to prevent thickening of secretions and crusting, which can block the tube.
Cuff Management: The cuff should be inflated only if there is a risk of aspiration or if mechanical ventilation is required. It must be deflated regularly to prevent tracheal wall ischemia.
Stoma Care: The skin around the stoma should be kept clean and dry to prevent infection and breakdown.
First Tube Change: Should be performed by an experienced clinician, typically after 5-7 days when the tract is mature.
Options:
a. Chronic rhinosinusitis may occur with or without nasal polyps
b. The presence of either nasal blockage or nasal discharge (anterior / posterior nasal drip is cardinal for the diagnosis
c. The presence of facial pain/pressure is cardinal for the diagnosis
d. The duration should be at least 12 weeks
✅ Correct Answer:
c. The presence of facial pain/pressure is cardinal for the diagnosis
🧠 Explanation:
The diagnosis of chronic rhinosinusitis requires at least two of the following symptoms: 1) nasal blockage/obstruction/congestion, 2) nasal discharge (anterior or posterior nasal drip), OR 3) facial pain/pressure, OR 4) reduction or loss of smell. Facial pain/pressure alone is not sufficient for diagnosis.
Options:
a. CT scan remains the gold standard in the radiologic evaluation for Chronic Rhinosinusitis.
b. In acute rhinosinusitis, the diagnosis is made on clinical grounds and CT is not recommended.
c. Imaging is indicated in acute rhinosinusitis if condition persists despite treatment, or a complication is suspected.
d. Conventional sinus X-rays is indicated in either Acute Rhinosinusitis or Chronic Rhinosinusitis
✅ Correct Answer:
d. Conventional sinus X-rays is indicated in either Acute Rhinosinusitis or Chronic Rhinosinusitis
🧠 Explanation:
Conventional sinus X-rays have poor sensitivity and specificity and are not recommended for the diagnosis of either acute or chronic rhinosinusitis. CT is the imaging modality of choice for chronic cases.
Options:
a. Make the patient sit up with a back rest and record any blood loss taking place through spitting or vomiting.
b. Keep check on pulse, BP and respiration.
c. Maintain haemodynamic. Blood transfusion may be required.
d. Antibiotics are optional if is nasal pack is to be kept beyond 24 hours
✅ Correct Answer:
d. Antibiotics are optional if is nasal pack is to be kept beyond 24 hours
🧠 Explanation:
Antibiotics are not optional; they are mandatory if a nasal pack is left in place for more than 24-48 hours to prevent toxic shock syndrome from Staphylococcus aureus.
Options:
a. Subperiosteal abscess
b. Pott puffy tumor
c. Pyocele
d. meningitis
✅ Correct Answer:
c. Pyocele
🧠 Explanation:
A pyocele is an infected mucocele, which is a chronic complication. The other options (subperiosteal abscess, Pott's puffy tumor, meningitis) are acute complications of rhinosinusitis.
Options:
a. Laterally, displaced nasal bridge can be reduced by firm digital pressure in the opposite direction.
b. Presence of oedema interferes with accurate reduction by closed methods. Therefore, the best time to reduce a fracture is before the appearance of oedema, or after it has subsided, which is usually in 3 days.
c. It is difficult to reduce a nasal fracture after 1 week because it heals by that time.
d. Nasal septal hematoma must be evacuated after 5 days when the oedema has resolved
✅ Correct Answer:
b. Presence of oedema interferes with accurate reduction by closed methods. Therefore, the best time to reduce a fracture is before the appearance of oedema, or after it has subsided, which is usually in 3 days.
🧠 Explanation:
This is the correct principle of management. Reduction is best performed either immediately or after 3-5 days once edema subsides. Option d is dangerously incorrect; a septal hematoma must be evacuated immediately to prevent septal necrosis.
Options:
a. common in children
b. premalignant and bleeds on touch
c. single and unilateral
d. arises from maxillary antrum
✅ Correct Answer:
b. premalignant and bleeds on touch
🧠 Explanation:
Antrochoanal polyps are benign lesions and do not bleed on touch. Bleeding is a red flag for malignancy.
Options:
a. Prescribe nasal decongestant and analgesics and review when necessary
b. Admit for observation
c. Prescribe topical antibiotic
d. Reassure the patient and schedule a review in 2 days’ time
✅ Correct Answer:
a. Prescribe nasal decongestant and analgesics and review when necessary
🧠 Explanation:
This describes early Acute Otitis Media (AOM). First-line management is symptomatic relief with analgesics and nasal decongestants. Antibiotics are often reserved for severe cases or if symptoms persist beyond 48-72 hours.
Options:
a. Right rhines test positive
b. Right rhines test negative
c. Webbers test lateralizes to left
d. Webbers test is centralized
✅ Correct Answer:
b. Right rhines test negative
🧠 Explanation:
In AOM, middle ear effusion causes conductive hearing loss. In the Rinne test, air conduction (AC) is better than bone conduction (BC) in normal ears (Rinne positive). In conductive loss, BC > AC (Rinne negative) on the affected side.
Options:
a. Tympanometry reveals type As graph on the right ear and type A on the left ear
b. Pneumatic otoscopy shows a rigid tympanic membrane on the left ear
c. Otoscopic findings on the right ear are normal and tympanometry reveals a type B graph
d. None of the above
✅ Correct Answer:
c. Otoscopic findings on the right ear are normal and tympanometry reveals a type B graph
🧠 Explanation:
This scenario describes Otitis Media with Effusion (OME) ("Glue Ear"), a sequelae of AOM. The TM may look dull or normal but is immobile, resulting in a flat (Type B) tympanogram, indicating fluid in the middle ear.
Options:
a. Meningitis
b. Conductive hearing loss
c. Cholesteatoma
d. Intracerebral abscess
✅ Correct Answer:
a. Meningitis
🧠 Explanation:
Meningitis is the most common intracranial complication of Chronic Suppurative Otitis Media (CSOM), due to the spread of infection through the tegmen tympani.
Options:
a. Tinnitus
b. Vertigo
c. Aural fullness
d. Nystagmus
✅ Correct Answer:
d. Nystagmus
🧠 Explanation:
The classic triad of Meniere's is vertigo, tinnitus, and aural fullness. Nystagmus is a sign observed during an attack, not a symptom reported by the patient.
Options:
a. correction of hearing in conductive deafness
b. eradication of infection & correction of hearing
c. drainage of mastoid abscess
d. correction of hearing in otosclerosis
✅ Correct Answer:
b. eradication of infection & correction of hearing
🧠 Explanation:
Tympanoplasty is a procedure to reconstruct the tympanic membrane and/or ossicles to restore hearing, but it is always performed in a safe, dry ear, implying the primary goal is to eradicate disease and then correct hearing.
Options:
a. deviation of the mouth to the same side of lesion
b. inability to show the teeth on whistle
c. inability to close the eye
d. inability to raise the eyebrow
✅ Correct Answer:
a. deviation of the mouth to the same side of lesion
🧠 Explanation:
In a lower motor neuron lesion (like an otogenic paralysis), the mouth deviates to the opposite (normal) side due to unopposed action of the contralateral muscles.
Options:
a. otalgia
b. epistaxis
c. deafness
d. Palatal paralysis
✅ Correct Answer:
b. epistaxis
🧠 Explanation:
Trotter's Triad is a classic presentation of advanced Nasopharyngeal Carcinoma: 1) Conductive deafness, 2) Trigeminal neuralgia/otalgia, and 3) Palatal paralysis. Epistaxis is a common symptom but not part of the classic triad.
Options:
a. Cystic hygroma.
b. Thyroglossal duct cyst.
c. Haemangioma.
d. Branchial cleft cyst.
✅ Correct Answer:
b. Thyroglossal duct cyst.
🧠 Explanation:
A thyroglossal duct cyst is the most common congenital midline neck mass. Its pathognomonic feature is that it elevates with tongue protrusion due to its attachment to the tract that followed the descent of the thyroid gland.
Options:
a. Bronchial cleft cyst.
b. Thyroglossal duct cyst.
c. Laryngocele.
d. Zenker’s diverticulum.
✅ Correct Answer:
c. Laryngocele.
🧠 Explanation:
A laryngocele is an air-filled sac arising from the laryngeal ventricle. It becomes apparent and expands when intralaryngeal pressure is increased, such as during the Valsalva maneuver.
Options:
a. that children born to mothers with genital warts carry a 231x relative risk of developing JORRP
b. causative agent is HPV 6 and 11
c. A prolonged delivery time (exceeding 10 hours) conferred a twofold increased risk for developing JORPP
d. Caesarean section reduces that risk of developing JORPP
✅ Correct Answer:
d. Caesarean section reduces that risk of developing JORPP
🧠 Explanation:
Caesarean section does not reliably prevent Juvenile-Onset Recurrent Respiratory Papillomatosis (JORRP). In utero transmission is possible, and the protective effect of C-section is debated and not absolute.
Options:
a. Facial canal
b. pyramidal eminence
c. Carotid canal
d. Cochleariform process
✅ Correct Answer:
c. Carotid canal
🧠 Explanation:
The carotid canal (housing the internal carotid artery) forms part of the anterior wall of the middle ear. The other structures are located in the posterior or medial walls.
Options:
a. Metastatic carcinoma
b. Branchial cleft cyst
c. Laryngocele
d. Bacterial adenitis
✅ Correct Answer:
a. Metastatic carcinoma
🧠 Explanation:
In older adults, especially with a history of smoking/alcohol, a neck mass is metastatic squamous cell carcinoma (often from the aerodigestive tract) until proven otherwise.
Options:
a. ciprofloxacin
b. cloxacillin
c. clindamycin
d. None of the above
✅ Correct Answer:
d. None of the above
🧠 Explanation:
This is a trick question. The ideal treatment for a quinsy (peritonsillar abscess) is drainage (needle aspiration or incision & drainage). Antibiotics (often Penicillin + Metronidazole, or Clindamycin) are an important adjunct but are not standalone treatment.
Options:
a. Laryngeal papilloma
b. Nasopharyngeal carcinoma
c. Peritonsillar abscess
d. retropharyngeal abscess
✅ Correct Answer:
b. Nasopharyngeal carcinoma
🧠 Explanation:
"Hot potato speech" is a muffled voice caused by oropharyngeal obstruction (e.g., peritonsillar or retropharyngeal abscess). Nasopharyngeal carcinoma causes hyponasal speech and hearing loss, not hot potato speech. Laryngeal papilloma causes hoarseness, not muffled speech.
Options:
a. CBC with differential to distinguish infection from neoplasm
b. Physical exam of the neck (including neck flexion test) to distinguish between meningitis and retropharyngeal abscess
c. Lateral neck film to distinguish between meningitis and retropharyngeal abscess
d. A history of complete childhood immunization, including H. influenzae type B
The clinical presentation (post-URTI, refusal to eat, irritability, stiff neck, fever) is highly suggestive of retropharyngeal abscess, a deep neck space infection.
A lateral neck X-ray is the most useful initial diagnostic tool. It can reveal:
Prevertebral soft tissue swelling (pathognomonic for retropharyngeal abscess).
Loss of normal cervical lordosis.
Air-fluid levels or gas shadows in the retropharyngeal space.
This quickly helps differentiate from meningitis, which would not show soft tissue swelling on X-ray but may require lumbar puncture for confirmation.
While physical exam (option b) is important, the X-ray provides objective, critical evidence rapidly and non-invasively.
A CBC (option a) may show leukocytosis but cannot localize the infection.
Immunization history (option d) is relevant but not immediately diagnostic.
Immediate imaging is crucial to guide urgent management (e.g., IV antibiotics, surgical drainage).
Options:
a. Pleomorphic adenoma
b. sialolith of the parotid
c. malignant tumour of the parotid
d. lymphoma
✅ Correct Answer:
c. malignant tumour of the parotid
🧠 Explanation:
Facial nerve weakness or paralysis associated with a parotid mass is a classic red flag and is pathognomonic for malignancy. Benign tumours like pleomorphic adenoma (a) very rarely cause nerve weakness. A sialolith (b) causes painful swelling, especially during meals, not a painless mass with weakness. Lymphoma (d) can occur in the parotid but is less common, and facial nerve involvement is not a typical early feature.
Options:
a. cricothyroid membrane
b. cricoid cartilage
c. cricoid cartilage and 1st tracheal ring
d. 2nd and 3rd tracheal rings
✅ Correct Answer:
d. 2nd and 3rd tracheal rings
🧠 Explanation:
Elective tracheostomy is routinely performed through an incision at the 2nd-3rd or 3rd-4th tracheal rings. This level avoids the cricoid cartilage (b, c) (the only complete ring in the trachea, damage to which can cause subglottic stenosis) and is below the highly vascular cricothyroid membrane (a), which is the site for an emergency cricothyroidotomy.
Options:
a. cricothyroid
b. thyroarytenoid
c. lateral cricothyroid
d. posterior cricoarytenoid
✅ Correct Answer:
a. cricothyroid
🧠 Explanation:
The external branch of the Superior Laryngeal Nerve (SLN) provides motor innervation only to the cricothyroid muscle, which tenses the vocal cords. All other intrinsic laryngeal muscles (thyroarytenoid, lateral and posterior cricoarytenoid) are innervated by the Recurrent Laryngeal Nerve (RLN).
Options:
a. Consanguinity
b. Low birth weight
c. Jaundice
d. All of a, b, c
✅ Correct Answer:
d. All of a, b, c
🧠 Explanation:
All listed options are established risk factors that warrant automatic referral for newborn hearing screening. Consanguinity (a) increases the risk of genetic disorders. Low birth weight (b) and severe jaundice (c) (kernicterus) are associated with sensorineural hearing loss.
Options:
a. Presbycusis
b. Rubella
c. Otosclerosis
d. Meniere’s Disease
✅ Correct Answer:
d. Meniere’s Disease
🧠 Explanation:
A rising (upward-sloping) audiogram, where hearing is better in the high frequencies than the low frequencies, is a classic early finding in Meniere's disease. Presbycusis (a) shows a high-frequency loss (downward-sloping). Otosclerosis (c) often shows a low-frequency conductive loss. Rubella (b) can cause hearing loss but does not have a characteristic rising configuration.
Options:
a. nasal growth
b. adenoids
c. nasal polyp
d. palatal paralysis
✅ Correct Answer:
d. palatal paralysis
🧠 Explanation:
Rhinolalia clausa is hyponasal speech caused by nasal obstruction (e.g., from a growth [a], adenoids [b], or polyps [c]). Palatal paralysis causes rhinolalia aperta (hypernasal speech) due to velopharyngeal insufficiency, where air escapes into the nose during speech.
Options:
a. They occur symmetrically on both cord
b. more frequently seen in male than in female
c. most common age group 20 to 30
d. It is a pinkish white nodule at the junction of anterior 2/3 & posterior 1/3
✅ Correct Answer:
b. more frequently seen in male than in female
🧠 Explanation:
Vocal cord nodules ("singer's nodes") are significantly more common in women and prepubescent boys, largely due to vocal behavior patterns. They are indeed typically symmetrical (a), occur in young adults (c), and are found at the typical site of maximal vocal cord contact (d).
Options:
a. Include fungal infection of the ear canal
b. Can lead to a deformity of the pinna
c. Can cause hearing impairment
d. Do not present with facial nerve palsy
✅ Correct Answer:
d. Do not present with facial nerve palsy
🧠 Explanation:
Malignant (Necrotizing) Otitis Externa, a severe infection of the outer ear caused by Pseudomonas in diabetics/immunocompromised patients, can spread to the skull base and involve the facial nerve and other cranial nerves. Options a, b, and c are true for various outer ear infections (e.g., otomycosis, perichondritis).
1. Regarding nasopharyngeal carcinoma
a) Describe the geographic populations in which nasopharyngeal carcinoma is most prevalent. (2.5 marks)
Answer: Nasopharyngeal carcinoma (NPC) is most prevalent in:
Southern China (especially Guangdong province)
Southeast Asia (e.g., Malaysia, Indonesia, Philippines)
North Africa
The Arctic (among Inuit populations)
b) Explain the age distribution of nasopharyngeal carcinoma. (2.5 marks)
Answer: NPC has a bimodal age distribution:
The first peak occurs in adolescents and young adults (15-25 years).
The second, larger peak occurs in older adults (45-60 years).
c) Identify the primary mode of treatment for nasopharyngeal carcinoma. (2.5 marks)
Answer: The primary treatment is radiotherapy. For advanced stages, concurrent chemoradiotherapy is the standard of care.
d) Discuss the common clinical presentations of nasopharyngeal carcinoma, focusing on neck mass. (2.5 marks)
Answer: The most common presentation is a unilateral, painless neck mass (often in the upper cervical region) due to metastatic lymphadenopathy. Other symptoms include unilateral serous otitis media (from Eustachian tube blockage), epistaxis, nasal obstruction, and cranial nerve palsies (especially CN VI).
2. Regarding Complicated Sinusitis
a) Explain the preferred management of Chandler III orbital complications. (2.5 marks)
Answer: Chandler III is a subperiosteal abscess. Management involves:
Immediate IV antibiotics (broad-spectrum).
Urgent surgical drainage via endoscopic sinus surgery or external approach (e.g., Lynch incision).
Close monitoring for vision changes.
b) Discuss whether intracranial abscesses are included in the Chandler classification. (2.5 marks)
Answer: No, the Chandler classification (I-V) specifically categorizes orbital complications of sinusitis (e.g., preseptal cellulitis, orbital cellulitis, subperiosteal abscess, orbital abscess, cavernous sinus thrombosis). Intracranial complications (e.g., meningitis, epidural abscess) are classified separately.
c) Identify the sinus most commonly implicated in orbital complications of sinusitis. (2.5 marks)
Answer: The ethmoid sinus is most commonly implicated due to its thin bony wall (lamina papyracea) separating it from the orbit.
d) Define the classifications of Chandler II and Chandler IV orbital complications. (2.5 marks)
Answer:
Chandler II: Orbital cellulitis – Diffuse edema and infiltration of orbital fat and muscles without abscess formation.
Chandler IV: Orbital abscess – A collection of pus within the orbital tissues, causing proptosis, ophthalmoplegia, and potential vision loss.
3. Regarding Juvenile-Onset Laryngeal Papilloma
a) Define juvenile-onset laryngeal papilloma and its etiology. (2.5 marks)
Answer: It is a condition characterized by recurrent, benign squamous papillomas in the larynx and airway of children. It is caused by Human Papillomavirus (HPV) types 6 and 11.
b) Describe the clinical features and complications associated with this condition. (2.5 marks)
Answer:
Clinical features: Hoarseness, weak cry, stridor, chronic cough, and airway obstruction.
Complications: Airway compromise requiring tracheostomy, distal spread to trachea/bronchi, and malignant transformation (rare).
c) Discuss the modes of transmission of the human papillomavirus (HPV) associated with this disease. (2.5 marks)
Answer: Transmission occurs primarily through vertical transmission from an infected mother to the child during vaginal delivery. In utero transmission is also possible.
d) Outline the treatment options for juvenile-onset laryngeal papilloma. (2.5 marks)
Answer:
Primary treatment: Repeated surgical debridement (e.g., microdebrider, CO₂ laser) to maintain airway patency.
Adjuvant therapy: Intralesional cidofovir or interferon for aggressive disease.
Emerging therapy: HPV vaccination (Gardasil 9) may reduce recurrence.
4. Regarding Laryngeal Carcinoma
a) Identify the most common risk factors for laryngeal carcinoma. (2.5 marks)
Answer: The most common risk factors are:
Tobacco smoking (strongest association)
Heavy alcohol consumption
Combined use of tobacco and alcohol (synergistic effect)
b) Differentiate between supraglottic, glottic, and subglottic laryngeal cancers in terms of their clinical presentations. (2.5 marks)
Answer:
Glottic: Present early with hoarseness. Often diagnosed at an early stage.
Supraglottic: Present with throat pain, odynophagia, referred otalgia, or a neck mass (due to nodal metastasis). Hoarseness occurs late.
Subglottic: Often asymptomatic until advanced; may cause stridor or airway obstruction.
c) Explain the risk factors of laryngeal carcinoma. (2.5 marks)
Answer: (Note: This repeats part a; likely meant to elaborate)
Primary: Tobacco, alcohol, betel quid chewing.
Others: Laryngopharyngeal reflux (LPR), occupational exposures (asbestos, wood dust), HPV infection (especially for supraglottic), and prior radiation.
d) Describe the primary treatment modalities for laryngeal carcinoma and their indications. (2.5 marks)
Answer:
Early-stage (I/II): Radiotherapy or transoral laser microsurgery (equally effective; choice depends on tumor location and patient factors).
Advanced-stage (III/IV): Organ-preservation protocols using chemoradiotherapy or total laryngectomy (if tumor not suitable for organ preservation).
Neck dissection: For nodal metastasis.
Answer ONLY ONE of the following in the answer booklet provided
ESSAY 1: A 50-year-old patient presents to the ENT clinic with recurrent episodes of epistaxis...
Key Points to Discuss:
1. Etiology and Risk Factors:
Local causes: Idiopathic (most common), nasal trauma (nose-picking, foreign body), inflammatory (rhinosinusitis, allergic rhinitis), anatomical (septal deviation, perforation), neoplasms (benign: epistaxis digitorum; malignant: nasopharyngeal carcinoma).
Systemic causes: Hypertension (common in older adults), bleeding disorders (hemophilia, von Willebrand disease), anticoagulant therapy (warfarin, aspirin, NOACs), liver disease (impaired clotting factor synthesis), hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu syndrome).
2. Clinical Presentation and Differential Diagnosis:
Presentation: Anterior vs. posterior bleeding. Anterior (90%): Blood flows from nostrils; posterior (10%): Blood flows down throat, more severe.
Differential Diagnosis:
Anterior: Little’s area bleeding (Kiesselbach’s plexus), septal perforation.
Posterior: Sphenopalatine artery bleeding, nasopharyngeal tumor.
Systemic: Coagulopathies, hypertension-induced.
3. Diagnostic Evaluation:
History: Duration, frequency, amount of bleeding, laterality, trauma, medication use (anticoagulants, NSAIDs), past medical history (hypertension, liver disease).
Physical Exam: Anterior rhinoscopy to identify bleeding site (often Little’s area). Nasal endoscopy for posterior bleeds.
Lab tests: CBC (check platelets), coagulation profile (PT/INR, aPTT), liver function tests.
Imaging: CT angiography for uncontrolled bleeding to identify vascular anomalies or tumors.
4. Medical Management Strategies:
First aid: Pinch soft part of nose, lean forward to avoid swallowing blood.
Topical vasoconstrictors: Oxymetazoline/phenylephrine sprays.
Cauterization: Chemical (silver nitrate) or electrical for identified vessels.
Nasal packing: Anterior packing with ribbon gauze or nasal tampons; posterior packing with balloon catheters (Foley’s catheter) for posterior bleeds.
Medical adjuncts: Discontinue anticoagulants if possible, manage hypertension, treat underlying inflammation/infection.
5. Surgical Interventions:
Endoscopic cautery: For visible vessels.
Ligation: Sphenopalatine artery ligation for posterior bleeds.
Embolization: Interventional radiology for refractory cases.
Septoplasty: If septal deviation is causative.
6. Preventive Measures and Patient Education:
Avoidance of trauma: No nose-picking, use humidifiers to prevent dryness.
Nasal moisturization: Saline sprays, petroleum jelly.
Medication management: Review anticoagulant use with physician.
Lifestyle modifications: Control hypertension, avoid NSAIDs.
7. Impact on Quality of Life:
Anxiety and stress: Fear of recurrent episodes.
Social impairment: Avoidance of activities due to bleeding risk.
Economic burden: Frequent hospital visits, cost of treatments.
ESSAY 2: Explain the indications, post-operative care and complications of tracheostomy
Key Points to Discuss:
1. Indications:
Airway obstruction: Supraglottic/glogttic pathology (tumors, edema, bilateral vocal cord paralysis), trauma, infections (Ludwig’s angina, epiglottitis).
Prolonged mechanical ventilation: >7-10 days of intubation.
Secretion management: Inability to clear secretions due to neurogenic weakness (e.g., stroke, motor neuron disease) or coma.
Prophylactic: Before major head/neck surgery to secure airway.
2. Post-Operative Care:
Immediate care:
Secure tube with tapes/trachy ties to prevent accidental decannulation.
Suction secretions regularly to maintain patency.
Use humidified oxygen to prevent crusting.
Inflate cuff only if ventilation needed or aspiration risk; deflate periodically to prevent tracheal necrosis.
Stoma care: Clean around stoma with saline, keep dry to prevent infection.
First tube change: After 5-7 days when tract is formed.
Communication: Use speaking valves or writing tools.
Nutrition: Initiate oral feeding once swallowing assessed safe.
3. Complications:
Intraoperative: Bleeding, injury to surrounding structures (thyroid, esophagus, recurrent laryngeal nerve), pneumothorax.
Early post-op (<1 week):
Tube obstruction (secretions, blood clot).
Dislodgement (before tract formation).
Subcutaneous emphysema.
Infection (stoma cellulitis, tracheitis).
Late post-op (>1 week):
Tracheal stenosis (from cuff overinflation).
Tracheomalacia.
Tracheo-innominate fistula (life-threatening bleed).
Tracheo-esophageal fistula.
Persistent stoma after decannulation.
Long-term: Speech and swallowing difficulties, social stigma.
4. Decannulation:
Criteria: Resolved indication for tracheostomy, patent upper airway, effective cough, no need for ventilation.
Process: Gradually downsize tube, plug tube to assess tolerance, then remove.
Q1.
A 65-year-old male patient had a swelling polypoid in nature in the left nasal cavity, diagnosed by many physicians as a unilateral nasal polyp. He also complained of left decreased hearing and tinnitus. One week ago, a very small swelling appeared in the neck on the left side. The swelling was not tender and firm.
a) Diagnosis and reason why (3)
Answer: Nasopharyngeal Carcinoma (NPC).
Explanation:
NPC typically affects middle-aged to elderly patients (not adolescents, unlike JNA).
Unilateral nasal obstruction with a mass in the nasal cavity is a presenting feature.
Hearing loss and tinnitus are due to Eustachian tube obstruction.
A firm, non-tender cervical lymph node is characteristic of metastatic spread.
JNA (juvenile nasopharyngeal angiofibroma) occurs in adolescent boys and does not explain cervical lymphadenopathy in a 65-year-old man.
b) Findings on examination (2)
Answer:
Irregular/fleshy nasopharyngeal mass visible on nasoendoscopy.
Ipsilateral cervical lymphadenopathy (firm, non-tender).
Possible middle ear effusion on otoscopy (serous otitis media).
Explanation:
NPC presents as a posterior nasal mass, may bleed slightly, and frequently shows nodal spread. Serous otitis media is common due to Eustachian tube involvement.
c) Investigations (2)
Answer:
Nasopharyngoscopy with biopsy for histological confirmation.
Imaging with CT or MRI of head and neck to assess tumor extent and nodal disease.
Explanation:
Unlike JNA (where biopsy risks massive bleeding), NPC requires biopsy for definitive diagnosis. Imaging helps in staging and treatment planning.
d) Treatment (3)
Answer:
Radiotherapy (gold standard for NPC, very radiosensitive).
Chemoradiotherapy for advanced stages or nodal disease.
Neck dissection only for persistent lymph nodes after radiotherapy.
Explanation:
NPC is radiosensitive, so radiotherapy is the primary treatment. Chemotherapy improves survival in advanced disease. Surgery is limited and not the main modality.
A 25-year-old male patient complained of sore throat, fever, and bilateral earache of 3 days duration. He then developed very high fever (40°C), severe left earache, inability to open the mouth, drooling of saliva, and minimal difficulty in respiration. He underwent a minor surgical intervention with relief of all symptoms except the sore throat.
a) Diagnosis and reason why (3)
Answer: Peritonsillar Abscess (Quinsy).
Explanation:
Starts as acute tonsillitis (sore throat, fever, bilateral earache).
Progresses to peritonsillar abscess with:
Severe unilateral earache → referred otalgia via glossopharyngeal nerve (CN IX).
Trismus → spasm of medial pterygoid due to peritonsillar inflammation.
Drooling of saliva and respiratory difficulty → obstruction from swelling.
Hot potato voice (muffled).
Relief after minor surgical intervention (incision and drainage) confirms abscess.
b) Findings on examination (2)
Answer:
Unilateral bulging, erythematous peritonsillar area with uvular deviation to opposite side.
Trismus, muffled “hot potato” voice, and tender ipsilateral cervical lymphadenopathy.
Explanation:
Peritonsillar abscess pushes the tonsil medially and uvula contralaterally. Voice changes and trismus are classical features.
c) Investigations (2)
Answer:
Clinical diagnosis → usually sufficient based on classic presentation.
Imaging (ultrasound or CT neck) → if extension to parapharyngeal/deep neck space is suspected.
Needle aspiration with culture/sensitivity → guides antibiotic choice.
Explanation:
Peritonsillar abscess is mainly a clinical diagnosis, but imaging and aspiration may be required in atypical or complicated cases.
d) Treatment (3)
Answer:
Incision and drainage (or needle aspiration) to evacuate pus.
IV antibiotics → broad-spectrum covering aerobes & anaerobes (e.g., penicillin + metronidazole, or clindamycin).
Supportive therapy → analgesia, IV fluids, steroids (to reduce edema and trismus).
Explanation:
Drainage is the definitive treatment. Antibiotics and supportive care are essential to control infection and improve recovery. Tonsillectomy may be considered in recurrent cases.
A 7-year-old boy was seen by an ophthalmologist for headache that has been present for the last few months. Headache was maximum between the eyes. However, there was no ocular cause for such a headache. The child was referred to an ENT specialist who noticed nasal intonation of voice and bilateral nasal obstruction. The mother reported that her child snores during his sleep and has repeated attacks of chest infection.
a) Diagnosis and reason why (3)
Answer: Adenoid Hypertrophy.
Explanation:
Hyponasal voice (nasal intonation) and bilateral nasal obstruction → classical signs of enlarged adenoids obstructing the choanae.
Snoring and mouth breathing at night → due to blocked nasopharyngeal airway.
Recurrent chest infections → from chronic mouth breathing, reduced nasal filtration, and postnasal drip.
Headache between the eyes → related to nasal obstruction and sinus involvement (especially ethmoidal/sinus congestion due to adenoids).
b) Findings on examination (2)
Answer:
Child is a mouth breather with open mouth posture and may have “adenoid facies” (long face, high-arched palate, malocclusion).
Nasal speech (hyponasal voice).
Postnasal drip, congested nasal mucosa, and sometimes middle ear effusion.
On posterior rhinoscopy or nasoendoscopy → enlarged adenoids seen obstructing choanae.
Explanation:
Examination shows both local effects (nasal obstruction, postnasal drip) and secondary effects (facial changes, middle ear disease).
c) Investigations (2)
Answer:
X-ray nasopharynx lateral view → shows “adenoid shadow” obstructing airway.
Nasoendoscopy → direct visualization of adenoids (gold standard).
Audiometry / tympanometry → if ear symptoms present (serous otitis media).
Explanation:
X-ray is a simple tool for children, while endoscopy gives a direct and more accurate assessment.
d) Treatment (3)
Answer:
Medical treatment (for mild cases): nasal saline, antibiotics for infection, nasal steroids (short term).
Adenoidectomy → definitive treatment for significant obstruction, snoring, recurrent infections, or adenoid facies.
Adenoidectomy + grommet insertion → if associated with recurrent otitis media with effusion.
Explanation:
Medical therapy may provide temporary relief, but surgery is the treatment of choice in children with complications or persistent symptoms.
A 30-year-old female has been suffering from seasonal nasal obstruction for the last few years. A watery nasal discharge and attacks of sneezing have been associated with this nasal obstruction. Two weeks ago, she had an attack of common cold, refused medical treatment, and two days later developed pain over the forehead and mild fever. She did not receive any treatment and recently developed severe headache with high fever (40°C), became severely irritable, and could not withstand light. On examination, there was marked neck and back stiffness.
a) What is the probable diagnosis? (3)
Answer: Bacterial meningitis secondary to frontal sinusitis.
Explanation:
Seasonal nasal obstruction and sneezing → allergic rhinitis.
Acute common cold → sinus blockage → acute frontal sinusitis.
Spread of infection intracranially → meningitis.
Features of meningitis: severe headache, fever, photophobia, irritability, neck stiffness.
b) Explain the above manifestations (3)
Answer:
Allergic rhinitis causes chronic mucosal edema, leading to sinus obstruction.
Acute sinusitis developed, untreated, leading to spread of bacteria.
Infection spread to the meninges → meningitis signs (neck stiffness, photophobia, high fever).
c) Management (4)
Answer:
Admit patient immediately.
IV broad-spectrum antibiotics (e.g., ceftriaxone + vancomycin ± metronidazole).
CT/MRI brain and sinuses to assess for abscess or complications.
Supportive care: IV fluids, antipyretics, monitoring for raised ICP.
Explanation:
Meningitis secondary to sinusitis is a medical emergency requiring prompt antibiotics and imaging.
A 10-year-old child complained of right mucopurulent otorrhea for the last 2 years. He suddenly became feverish, and this was associated with diminution of the ear discharge. A few days later, there was tenderness over the right mastoid. The retroauricular sulcus was preserved. There were no neurological disturbances.
a) What is the probable diagnosis? (3)
Answer: Acute mastoiditis complicating chronic suppurative otitis media (CSOM).
Explanation:
Long history of ear discharge → CSOM.
Sudden fever + reduction of discharge → blocked drainage, pus retained in mastoid.
Mastoid tenderness but sulcus preserved → early mastoiditis (before subperiosteal abscess).
b) Explain the manifestations (3)
Answer:
CSOM predisposes to secondary infection of mastoid air cells.
When drainage is blocked → pressure buildup → fever and pain.
Mastoid tenderness is early sign; absence of sulcus obliteration = no abscess yet.
c) Management (4)
Answer:
Admit and start IV broad-spectrum antibiotics (e.g., ceftriaxone or amoxicillin-clavulanate).
Aural toileting + topical antibiotic drops.
CT temporal bone to assess mastoid involvement.
If no improvement → myringotomy ± mastoidectomy.
Explanation:
Medical therapy is first-line. Surgery is needed if infection persists or complications arise.
A 3-year-old boy presented to the ENT specialist with inability to close the right eye and deviation of the mouth angle to the left side upon crying, for 2 days. His mother reported severe right ear pain 5 days earlier, which improved with antibiotics.
a) What is the probable diagnosis? (3)
Answer: Facial nerve palsy secondary to acute otitis media.
Explanation:
Facial nerve passes through middle ear (via fallopian canal).
Acute otitis media can cause inflammation and compression of the nerve.
LMN facial palsy signs: inability to close eye, mouth deviation.
b) Explain the manifestations (3)
Answer:
Severe ear pain → acute otitis media.
Inflammation in middle ear → compresses facial nerve.
Leads to facial asymmetry: weak right side, mouth pulled left.
c) Management plan (4)
Answer:
Continue systemic antibiotics for AOM.
Add oral steroids to reduce nerve inflammation.
Eye protection (artificial tears, patching) to prevent keratitis.
ENT follow-up for nerve recovery and hearing assessment.
Explanation:
Most facial palsy from AOM resolves with medical treatment. Surgery (myringotomy/mastoidectomy) is reserved for refractory or complicated cases.
A 56-year-old male presents with a history of hoarse voice for 1 year, difficulty in breathing for 2 months, and a neck swelling on the right side of the neck. He smoked for 15 years until last year.
a) Provisional diagnosis and 2 differential diagnoses (3)
Answer:
Provisional diagnosis: Laryngeal Carcinoma (most likely squamous cell carcinoma).
Differential diagnoses:
Laryngeal papillomatosis (benign but recurrent wart-like growths).
Chronic laryngitis (long-standing irritation from smoking).
Tuberculosis of the larynx.
Explanation:
The risk factors (male, smoker, age >50) strongly suggest carcinoma.
Hoarseness lasting >3 weeks in a smoker is a red flag for laryngeal cancer.
Neck swelling indicates possible metastatic cervical lymph node.
Difficulty in breathing points to airway obstruction by a progressive mass.
Differentials are less common in this age group but considered in atypical cases.
b) Investigations (5)
Answer:
Indirect or flexible laryngoscopy → to visualize the laryngeal lesion.
Direct laryngoscopy with biopsy (under GA) → histopathological confirmation.
CT scan or MRI of neck and chest → to evaluate tumor extent, airway involvement, cartilage invasion, and nodal/distant spread.
Chest X-ray → to rule out pulmonary metastasis or second primary from smoking.
Staging workup (TNM staging) → includes PET-CT where available.
Explanation:
Biopsy is essential for confirmation. Imaging defines extent, invasion, and nodal spread. Staging is critical for planning treatment.
c) Treatment (3)
Answer:
Early-stage disease (Stage I–II): Radiotherapy or endoscopic laser cordectomy (voice-preserving).
Advanced disease (Stage III–IV): Total laryngectomy ± neck dissection followed by adjuvant radiotherapy/chemoradiotherapy.
Voice rehabilitation: Post-laryngectomy speech therapy using esophageal speech, electrolarynx, or tracheoesophageal puncture (TEP) prosthesis.
Explanation:
Treatment depends on stage. Radiotherapy and conservative surgery are used for early lesions, while total laryngectomy is often required for advanced cases. Rehabilitation of voice is essential for quality of life.
A 45-year-old woman presents with epistaxis to the OPD. She denies any history of trauma but reports that this incident is the 4th one this year.
a) Classify epistaxis (2)
Answer:
Anterior epistaxis → bleeding from Kiesselbach’s plexus (Little’s area) on the anterior nasal septum.
Accounts for 90–95% of cases.
Usually mild, recurrent, and easy to control.
Posterior epistaxis → bleeding from branches of the sphenopalatine or posterior ethmoidal arteries in the posterior nasal cavity.
Less common but more severe, often requiring hospitalization.
Explanation:
Anterior epistaxis is most common and often recurrent in middle-aged patients. Posterior epistaxis is dangerous, occurs in older or hypertensive patients, and is harder to control.
b) What are the investigations to order in this patient? (5)
Answer:
Full blood count (FBC) → to assess anemia and platelet count.
Coagulation profile (PT, aPTT, INR) → to detect bleeding disorders.
• PT (Prothrombin Time): Assesses the extrinsic and common clotting pathways. Used to monitor warfarin therapy.
• INR (International Normalized Ratio): Standardized PT. Target range: 2.0–3.0 for most anticoagulated patients.
• aPTT (Activated Partial Thromboplastin Time): Evaluates the intrinsic and common pathways. Used to monitor heparin therapy.
🧠 Mnemonic: PETI — PT = Extrinsic, aPTT = Intrinsic
Blood pressure measurement → to check for hypertension as a contributing cause.
Nasal endoscopy → to localize the bleeding site and rule out tumors or vascular malformations.
Liver function tests (LFTs) → if chronic liver disease suspected as cause of coagulopathy.
Explanation:
Recurrent epistaxis without trauma warrants systemic evaluation (blood disorders, hypertension, liver disease) and local assessment (endoscopy).
c) List 3 modalities of treatment for epistaxis (3)
Answer:
First-line (conservative): Pinching the nose, topical vasoconstrictors (xylometazoline/adrenaline), chemical or electrical cautery of bleeding point.
Second-line: Anterior or posterior nasal packing, or endoscopic cauterization.
Third-line: Surgical arterial ligation (sphenopalatine or ethmoidal artery) or endovascular embolization.
Explanation:
Treatment is stepwise: start with conservative methods, escalate to packing if bleeding persists, and finally consider surgical or interventional radiology approaches in refractory cases.
Having rotated in the ENT department during your 6th year of medical school, you feel that you are prepared to manage nasal foreign bodies that present to you as the intern on call. You quickly remind yourself of the basics for this condition by noting down the following:
a) Instruments required to remove FB from the nose (2)
Answer:
Headlight (for illumination).
Nasal speculum (for visualization).
Bayonet forceps.
Suction apparatus.
Probe or hook.
Wax curette.
Explanation:
Proper visualization and suitable instruments are essential for safe removal. Headlight and speculum allow hands-free access, while forceps, curette, or suction help in extraction depending on the type of FB.
b) Possible complications that may arise (2)
Answer:
Aspiration of the foreign body into the airway.
Local infection or sinusitis.
Rhinolith formation (if FB is neglected for long).
Septal perforation or mucosal trauma.
Explanation:
Foreign bodies can migrate, cause chronic inflammation, or lead to secondary complications. Prompt removal prevents these outcomes.
c) When to call your senior (2)
Answer:
If the patient is an uncooperative child requiring sedation or GA.
If the FB is difficult to visualize or remove.
If there is significant nasal bleeding.
If the FB has been aspirated into the airway.
Explanation:
These situations carry risks (airway compromise, complications of removal) and need senior or anesthetic support.
d) How a neglected foreign body in children presents (2)
Answer:
Unilateral, foul-smelling, purulent nasal discharge.
Sometimes blood-stained discharge and nasal obstruction.
Explanation:
This is the classic presentation of a retained FB, often leading to suspicion in children when there is persistent unilateral nasal discharge.
e) Type of FB that should be managed urgently (2)
Answer:
Button batteries → cause rapid tissue necrosis, mucosal burns, and septal perforation within hours due to electrical and chemical injury.
Magnets → if more than one is inserted, they can attract across the septum, causing pressure necrosis and perforation.
Explanation:
Button batteries and magnets are ENT emergencies due to their potential for severe local destruction.
You are doing a morning round post-call in the ENT ward and discover that the patient who had a tracheostomy procedure done last night is breathing noisily.
a) What is the possible cause of the noisy breathing? (2)
Answer:
Tracheostomy tube obstruction by thick secretions, mucus plug, or blood clot.
Malposition or kinking of the tube.
Explanation:
Noisy breathing in a fresh tracheostomy is most commonly due to obstruction. In the early post-op period, secretions and blood clots are common culprits, while tube displacement can also cause airway compromise.
b) What is your next step? (3)
Answer:
Suction the tracheostomy tube immediately to clear secretions.
If not relieved → remove and clean the inner cannula (or replace with a new one).
If obstruction persists → remove and replace the entire tracheostomy tube promptly, while ensuring the airway is maintained.
Explanation:
Management must be quick and stepwise to restore airway patency. Suctioning is first-line. If that fails, inner cannula cleaning or tube replacement is necessary. Delay can lead to respiratory arrest.
c) Explain possible complications of tracheostomy during this period. (5)
Answer:
Early complications (within 24–48 hrs):
Hemorrhage (from tracheal or thyroid vessels).
Tube obstruction (secretions, clot).
Subcutaneous emphysema.
Pneumothorax or pneumomediastinum.
Accidental decannulation or misplacement.
Intermediate complications:
Tracheitis or local infection.
Tracheal ulceration and granulation tissue.
Late complications:
Tracheal stenosis.
Tracheoesophageal fistula.
Tracheo-innominate artery fistula (rare but catastrophic hemorrhage).
Explanation:
Complications vary with time. Early ones are airway- or surgery-related, intermediate relate to infection or trauma, and late complications are mainly structural or vascular.
a) Treat the least threat to life first
b) A detailed history is essential to begin the evaluation
c) Laboratory investigations should be done before treatment is instituted
d) ABCDE approach is the rule
Correct Answer: d) ABCDE approach is the rule
Explanation:
In trauma, the primary survey follows the ABCDE sequence (Airway, Breathing, Circulation, Disability, Exposure). Life-threatening problems are managed first before history or investigations.
a) More common in the submandibular gland
b) Most common benign salivary gland tumor
c) Treatment is by surgery
d) Pain is a common feature
Correct Answer: c) Treatment is by surgery
Explanation:
Mucoepidermoid carcinoma is the most common malignant salivary gland tumor, especially in the parotid.
Pleomorphic adenoma is the most common benign tumor (not mucoepidermoid carcinoma).
Treatment = surgical excision with adequate margins.
Pain may occur in advanced stages, but not usually in early disease.
a) A malignant bone neoplasm that has potential for excessive growth, bone destructiveness.
b) Maxillary lesion tends to involve frontal one
c) There is no evidence that ossifying fibromas ever undergo malignant change
d) Surgical removal using curettage or enucleation is treatment of choice
Correct Answer: d) Surgical removal using curettage or enucleation is treatment of choice
Explanation:
Ossifying fibroma is a benign fibro-osseous lesion.
It is not malignant, although it can be locally aggressive.
Standard treatment = surgical removal (enucleation/curettage).
Malignant change is extremely rare.
a) Originates from ductal and myoepithelial elements
b) Male-to-female ratio of 3:4
c) The most common intraoral site is the anterior palate
d) It is fast-growing
Correct Answer: a) Originates from ductal and myoepithelial elements
Explanation:
Pleomorphic adenoma = “mixed tumor,” arising from ductal + myoepithelial cells.
Female predominance (not 3:4 male-to-female).
Most common intraoral site = posterior hard palate (not anterior).
It is typically slow-growing, painless, firm.
a) 22
b) 16
c) 6
d) 3
Correct Answer: d) 3
Explanation:
In the Universal numbering system, teeth are numbered 1–32 starting from the upper right third molar (#1).
Thus, upper right first molar = #3.
#16 = upper left third molar, #6 = upper right canine, #22 = lower left canine.
a) Ultrasound method
b) CT scan
c) Handkerchief method
d) Infrared method
Correct Answer: c) Handkerchief method
Explanation:
The handkerchief/halo sign test = place drop of fluid on cloth; CSF forms a clear ring around central blood spot.
CT can detect fractures, but does not confirm CSF in fluid.
Ultrasound/infrared are not standard bedside tests.
a) In 10% of cases – dental or post-extraction infection are implicated
b) Severe systemic upset with fever is seldom a feature
c) Obtain samples for microbiology assessment
d) Institute surgical drainage after antibiotic therapy
Correct Answer: c) Obtain samples for microbiology assessment
Explanation:
>90% of Ludwig’s angina cases follow dental infections (esp. mandibular molars) → so (a) is false.
Severe systemic upset with fever is typical, not rare → so (b) is false.
Early management includes culture for microbiology + broad-spectrum IV antibiotics.
Airway security + early surgical drainage are critical; not delayed until after antibiotics.
a) May be used to damage to vital structures
b) Less bone removal Cyst cavity open to inspection
c) Whole cyst lining available for histological analysis
d) Easier for the patient to look after in terms of oral hygiene
Correct Answer: b) Less bone removal, cyst cavity open to inspection
Explanation:
Marsupialization decompresses cysts → reduces size → preserves bone and vital structures.
Disadvantage: does not give whole cyst lining for histology.
Oral hygiene is not necessarily easier.
a) Submasseteric space
b) Pterygomaxillary space
c) Submandibular space
d) Cavernous sinus
Correct Answer: a) Submasseteric space and c) Submandibular space
Explanation:
Lower third molars communicate directly with:
Submasseteric space (via lateral spread).
Submandibular space (roots below mylohyoid line).
Pterygomaxillary space = more posterior, less common direct spread.
Cavernous sinus spread is indirect (via venous system from upper teeth, not lower).
a) Interpersonal altercations are implicated
b) Coleman's sign indicates tongue involvement
c) There is always paraesthesia
d) Antibiotics are not indicated
Correct Answer: a) Interpersonal altercations are implicated
Explanation:
Most common cause of mandibular fractures = assaults/fights (interpersonal violence).
Coleman’s sign does not exist; Battle’s sign relates to basilar skull fracture.
Paraesthesia may occur if the inferior alveolar nerve is involved, but not “always.”
Antibiotics are indicated because fractures may communicate with oral cavity (contaminated environment).
Q1. Osteomyelitis of maxilla is rare due to all of the following except:
a. Abundant blood supply to the maxilla
b. Abundant medullary spaces
c. Thick cortical plate
d. Porous nature of membranous bone
✅ Answer: c. Thick cortical plate
Explanation: The maxilla resists osteomyelitis because of its rich vascularity, cancellous nature, and porous bone structure. Unlike the mandible, it has a thin cortical plate, not a thick one. Hence, the “except” is (c).
Q2. Clinical features for Le Fort II and III fractures may include
a. Bilateral subconjunctival hemorrhage
b. CSF leakage
c. Anterior open bite
d. Pain in the neck
✅ Answer: a. True, b. True, c. True, d. False
Explanation: Le Fort II/III fractures show facial ecchymosis, bilateral subconjunctival hemorrhage, CSF rhinorrhea, and anterior open bite due to occlusal changes. Neck pain is not a direct feature.
Q3. Concerning clinical features of juvenile ossifying fibroma
a. Age ranges from 6 months to 70 years
b. Trabecular form occurs in younger patients, mean age 11 years
c. Mean age for psammomatoid form is 11 years
d. Maxillary predominance for both patterns
✅ Answer: a. True, b. True, c. False, d. True
Explanation:
Age range is wide (though it peaks in children/young adults).
Trabecular type: mean ~11 yrs.
Psammomatoid type: occurs later, often 20–35 yrs (not 11).
Both types have a maxillary predominance.
Q4. Pleomorphic adenoma rule of 80s
a. 80% of parotid tumors are benign
b. 80% of parotid tumors are pleomorphic adenomas
c. 80% of salivary gland pleomorphic adenomas occur in the parotid
d. 80% of parotid pleomorphic adenomas occur in the deep lobe
✅ Answer: a. True, b. True, c. True, d. False
Explanation: The “rule of 80s” holds for (a), (b), (c). Only 10–20% occur in the deep lobe, so (d) is false.
Q5. Concerning squamous cell carcinoma of the maxillary sinus
a. Smoking is a predisposing factor
b. May present with enophthalmos
c. May present as a non-healing ulcer
d. Treatment may include partial maxillectomy
✅ Answer: a. True, b. False, c. True, d. True
Explanation: Smoking is a risk factor. SCC can present with sinus obstruction, non-healing ulcers, and sometimes proptosis. Enophthalmos is not typical (that’s silent sinus syndrome). Partial/total maxillectomy is part of management.
Q6. Oral squamous cell carcinoma
a. Plummer-Vinson syndrome is a predisposing factor
b. Surgery is indicated in stage IV disease
c. T1N2M1 is stage II
d. History of tobacco smoking is important
✅ Answer: a. True, b. True, c. False, d. True
Explanation:
Plummer-Vinson predisposes to oral/pharyngeal SCC.
Even Stage IV may require surgery with adjuvant therapy.
T1N2M1 = Stage IVC (distant metastasis), not Stage II.
Tobacco is a major risk factor.
Q7. Examples of Non-Hodgkin’s lymphomas
a. Small cell lymphoma
b. Diffuse large cell lymphoma
c. Large lymphocytic lymphoma
d. Cortical follicular lymphomas
✅ Answer: a. False, b. True, c. False, d. True
Explanation: Diffuse large B-cell lymphoma and follicular lymphoma are common NHL subtypes. "Small cell lymphoma" and "large lymphocytic lymphoma" are not standard WHO categories.
Q8. Radiographic features of Burkitt’s lymphoma
a. Margins: ill-defined, non-corticated
b. Shape: rapidly expanding, balloon-shaped
c. Punched-out lesions
d. Margins relatively well-demarcated, often scalloped
✅ Answer: a. True, b. True, c. False, d. True
Explanation: Burkitt’s lesions are aggressive, ill-defined, and expansile (“ballooning” with floating teeth). They are not punched-out (that’s multiple myeloma). Scalloping and rapid progression are typical.
Q9. Ameloblastoma can originate from
a. Developing enamel organ
b. Odontogenic rests (rests of Malassez, rests of Serres)
c. Reduced dentine epithelium
d. Epithelial lining of odontogenic cysts
✅ Answer: a. True, b. True, c. False, d. True
Explanation: Ameloblastoma may arise from enamel organ, odontogenic rests, or cyst epithelium. “Reduced dentine epithelium” is incorrect terminology.
Q10. Concerning FDI notation: 24 and 41 denote
a. Upper left second premolar
b. Upper right second premolar
c. Lower left central incisor
d. Lower right central incisor
✅ Answer: a. True, b. False, c. False, d. True
Explanation:
24 = upper left second premolar.
41 = lower right central incisor (since quadrant “4” = lower right).
Many mistakenly think 41 is lower left, but correct FDI quadrant numbering is: 1 = upper right, 2 = upper left, 3 = lower left, 4 = lower right.