Ossifying fibroma of mastoid: a case report

Abstract

Ossifying fibroma is a slow growing benign neoplasm usually Involving bones of the skull and the face, mainly mandible and maxilla. The tumor is composed of bone that develops within fibrous connective tissue, sometimes with cementum-like calcifications. Clinical presentation is usually asymptomatic, rarely presented with facial asymmetry, swelling, pain, bowing of long bones. Radiological investigations are mainly computed tomography (CT) scan and magnetic resonance imaging (MRI). Ossifying fibroma very rarely can be seen as a tumor in temporal bone. In this case report 30-year-old male presented with a history of blocked ear and occasional left ear ache. On examination left externa auditory canal was narrow with bony prominence in the posterior canal wall. CT and MRI revealed left mastoid mass, during surgery hard vascular mass filling the mastoid antrum dissected out and histopathology confirmed as ossifying fibroma. The definitive treatment of ossifying fibroma is complete surgical excision. Complications can be local invasion, intracranial extension.