A cervico-dorsal intramedullary epidermoid cyst. Case report and review of the literature.

Intramedullary epidermoid cysts are rarely observed. Only a little more than 30 cases have been reported in the literature. The authors have treated a 51 year-old woman with a cervico-dorsal intramedullary epidermoid tumor associated with a syringomyelia. The frequency of this lesion, its CT and MRI appearance and the possibility of a preoperative diagnosis are discussed.