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Related to choanal polyp: antrochoanal
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  • noun

Synonyms for polyp

a small vascular growth on the surface of a mucous membrane

one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth

References in periodicals archive ?
A choanal polyp is hypodense on CT, hypointense on T1-weighted and hyperintense on T2-weighted MR images, with peripheral contrast enhancement.
CT and/or magnetic resonance imaging can identify the origin of a choanal polyp and the involved sinus, thereby eliminating the risk that the wrong sinus will be opened.
Preoperative identification of the sinus from which a choanal polyp arises is important because the polyp's site of origin in the sinus must be resected in order to minimize recurrence.
However, nasal endoscopy revealed that a large mass was obstructing the entire nasopharynx and suggested that a choanal polyp might be emanating from the left side.
This case illustrates an uncommon presentation of a choanal polyp, as CT did not demonstrate any involvement of the paranasal sinuses.
Choanal polyps have frequently been described as arising from the maxillary sinus (1) and have been infrequently reported to be arising from the sphenoid sinus.
Most choanal polyps arise from the maxillary sinus, and they are called antrochoanal polyps.