Inverting papilloma of the sphenoid sinus.

Although inverting papillomas originating from the paranasal sinuses have been reported, inverting papillomas emanating from the sphenoid sinus are exceedingly rare. The following is a case report and one year follow-up of a 57-year-old white man who underwent a radical sphenoidostomy for recurrent inverting papilloma of the sphenoid sinus. The patient, to date, is free of disease.