Fracture of the floor of the orbit caused by an object striking the eyes straight on. As the floor of the orbit ruptures, the inferior rectus muscle is forced through the fracture into the maxillary sinus causing entrapment. 

Caused by a blow to the cheek resulting in fracture of the zygoma in three places- orbital process, maxillary process and arch. The result is a free floating zygomatic bone or tripod fracture.

Severe bilateral horizontal fractures of the maxillae that may result in an unstable detached fragment. 

Fluid that develops in sinus that turns into a thick mucus that often indicates infection is present within one or more of the sinuses

Set of symtoms which may include pain and clicking that indicate dysfunction of the TMJ. This condition may be caused by malocclusion, stress, muscle spasm, or inflammation. 

bacterial infection of the mastoid process that can destroy the inner part of the mastoid process. It often results from middle ear infections. Bacteria in the middle ear can migrate to the mastoids. 

benign usually slow growing tumor of the auditory nerve sheath that originates in the internal auditory canal. Symptoms include hearing loss, dizziness and loss of balance. 

benign cystic mass or tumor that is most common in the middle ear. It occurs due to a congenital defect or chronic otitis media. It may destroy surrounding bone which can lead to serious complications including hearing loss. 

Hereditary disease that involves irregular ossification of the auditory ossicles of the middle ear. One common finding is fixation of the stapes to the oval window. This leads to an impediment of sound transmission.