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김중강,신무진,류태선,오춘석,김덕준 啓明大學校 醫科大學 1994 계명의대학술지 Vol.13 No.4
Choanal polyps can be defined as paranasal sinus polyps that pass through sinus ostia and protrude into the boundary between the nasal cavity and nasopharynx-the choana. The most common choanal polyp is the antrochoanal polyp, but sphenochoanal and ethmoidochoanal polyps are rarer. We experienced a case of choanal polyp originating from the nasal mucosa of the sphenoethmoid recess, not from the paranasal sinuses. It was removed with intranasal endoscopy, and 6 months follow-up has not shown any recurrence. So we report this very rare case with review of literatures.