Endoscopic Findings of Inverted Papilloma in the Sphenoid Sinus

Abstract

An inverted papilloma is a benign tumor of the nose, well known for its local invasiveness, recurrence, and malignant potential. A 57-year-old man presented at our otolaryngologic clinic with a lesion in the sphenoid sinus. An outpatient biopsy indicated an inflammatory polyp. Endoscopic sinus surgery was used to remove the mass filling the sphenoid sinus. On operating endoscopy, we observed a convoluted mass inside the sphenoid sinus (Figure 1A), which was present along its entire wall. The mass was removed with a Freer Elevator and a curved curette. It was a white transparent convoluted mass with dimensions of 2.5 Â 1.5 cm (Figure 1B).