title: Giant spinal extradural cyst.
abstract: A case of giant extradural cyst in a 13-year-old girl is described. The cyst was formed by the arachnoid membrane which extruded through a wide lumbar dural defect. It extended from the midthoracic region down to the sacral canal. At operation a large portion of the cystic wall was removed, but the dural defect was not repaired. Two spino-peritoneal shunts were left in place to drain both the intradural and the extradural spaces. The treatment has proved successful during the 20 months that the patient has been observed.
mesh_terms: D000293:Adolescent; D003560:Cysts / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D011859:Radiography; D013122:Spinal Diseases / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery