antrochoanal polyp


antrochoanal polyp

A solid polypoid lesion seen in adolescent males, which arises in the maxillary antrum but typically presents as a nasal cavity mass, secondarily involving the nasal cavity as it extends through the ostium via a long pedicle.
DiffDx
Inflammatory polyp, angiofibrobroma.

antrochoanal polyp

A nasal polyp found near the posterior wall of the maxillary sinus.See also: polyp