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
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
| Ethmoidal polypi |
Antrochoanal polyp |
| Seen in adults |
Seen in children and adolescents |
| Allergy is the common cause |
Infection is the common cause |
| Multiple (bunch of grapes) |
Unilateral |
| Arises from ethmoidal labyrinth |
Arises from maxillary antrum |
| Seen easily on anterior rhinoscopy |
Seen commonly in post nasal exam |
| X ray PNS may show hazy ethmoids and normal maxillary sinuses |
X ray PNS shows hazy maxillary antrum |
| Mostly bilateral |
Usually unilateral |
| Recurrence is common |
Recurrence is uncommon |
| Polypectomy |
Caldwel luc surgery in recurrent cases |
Last modified: Sunday, 16 March 2008, 11:06 AM