Solitary intracranial subdural osteoma: case report and review of the literature.

Intracranial subaural osteomas without any relation to osseous or meningeal tissues are rare, with only five cases including the present one having been reported so far. In most patients headache, which was always localized at the site of the lesion, was the most frequent complaint and subsided after complete resection of the neoplasm. The mechanism of origin of such lesions remains unknown.