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