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Related to antrochoanal polyp: inverted papilloma
antrochoanal polypA 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.
Inflammatory polyp, angiofibrobroma.
A nasal polyp found near the posterior wall of the maxillary sinus.
See also: polyp