Choanal polyp originating from the middle turbinate.

Choanal polyps usually originate from the maxillary sinus. Unusual origins such as the sphenoid sinus, ethmoid sinus, nasal septum and hard and soft palate have been reported in the literature. Herein, we report a rare case of choanal polyp originating from the middle turbinate that was removed by an endoscopic surgery technique. The computed tomographic findings are described and the literature is reviewed.