antrochoanal polyp


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Related to antrochoanal polyp: inverted papilloma

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
References in periodicals archive ?
Antrochoanal polyps arise from the maxillary sinus and are more common; they account for 3 to 6% of all polyps.
Endoscopic nasal examination and CT of the paranasal sinuses are usually able to allow for differentiation between sphenochoanal and antrochoanal polyps.
Unilateral antrochoanal polyp with bilateral nasal obstruction.
Endoscopic transnasal surgery in antrochoanal polyp.
Endoscopic removal of the antral portion of antrochoanal polyp by powered instrumentation.
Antrochoanal polyps are uncommon, accounting for only 3.
Endoscopic excision of antrochoanal polyps has emerged as a safe and effective procedure in recent years.
Among those with antrochoanal polyps who responded to the questionnaire, 2 reported no symptoms at all, 6 had improved, and 1 had worsened.
Among the 7 patients with antrochoanal polyps who answered, I reported no symptoms and 5 had improved.
6) The fact that maxillary sinusitis is more common than sphenoid sinusitis may explain why antrochoanal polyps are more common than sphenochoanal polyps.
Which of the following statements regarding antrochoanal polyps is true?