Fibrous dysplasia of the temporal bone presenting as an osteoma of the external auditory canal.

: The involvement of the temporal bones by fibrous dysplasia is uncommon. This disease is usually manifested by a conductive hearing loss. We describe a case of fibrous dysplasia misdiagnosed as an osteoma in a young man. This case emphasizes the need to suspect fibrous dysplasia of the temporal bone as the cause of bony lesions in the external auditory canal in young patients.