Carcinoma ex pleomorphic adenoma of the maxillary sinus: a case report.

A 52-year-old woman presented to the ENT clinic with a huge swelling on the right side of her face that had originated 6 years earlier. The mass was ultimately diagnosed as a carcinoma ex pleomorphic adenoma of the maxillary sinus. Carcinoma ex pleomorphic adenoma itself is uncommon, and its origin in the maxillary sinus is very rare. We discuss the presentation, histopathologic picture, and management of this case.