Nasal polyp
Nasal polyp: Polyp is a Latin word meaning polypous (many footed).
Definition:
Polyp is defined as simple oedematous hypertrophied mucosa of the nasal cavity. It can be unilateral / bilateral.
Causes of nasal polyp:
1. Infections
2. Allergy
3. Polyp due to mucovisidosis
Classification:
Nasal polyp can be classified as:
1. Simple polyp
. Ethmoidal polypi
. Antrochoanal polyp
2. Fungal polyp
3. Malignant polyp
Differences between antrochoanal polyp and ethmoidal polypi