Almost all nasal polyps orginate from the mucosa of the lateral walls of the nasal cavity or from the paranasal sinuses. Diagnosis of a choanal polyp is made by endoscopic and radiologic examinations. Computed tomography and magnetic resonance imaging are very helpful to detect the origin and the extent of the polyp . Functional endoscopic surgery is the treatment of choice. Nasal polyps orginating from the superior nasal concha with choanal extension are extremely rare. We report a case of choanal polyp that arised from the superior nasal concha and extended down to the choana with its radiologic and surgical findings.
Key words: Superior concha, choanal polyp, nasal obstruction