Osteoma



Overview

Osteomas are benign, slow growing bony tumors involving the base of the skull and paranasal sinuses.  Arising from the normal bony walls of the sinus cavities, osteomas are the most common tumor involving the paranasal sinuses.  Causes of osteoma development that have been theorized include congenital, inflammatory, or traumatic factors, but in most cases the cause of the osteoma is unknown.