Last reviewed 01/2018
Antrochoanal polyps are benign lesions that are usually unilateral. They are uncommon.
The polyps commences as an oedematous lining of the maxillary antrum. It gradually prolapses through the natural or an accessory ostium into the nasal cavity, and enlarges towards the posterior choana and nasopharynx.
Presentation is usually with:
- nasal obstruction, usually most marked in expiration
- secretory otitis media due to eustachian tube dysfunction
Surgical removal is indicated.
Recurrence is frequent and may necessitate a Caldwell-Luc operation.