title: Lumbar intraspinal extradural ganglion cyst.
abstract: A case is presented of an intraspinal extradural ganglion cyst at the L4-5 level. The clinical picture suggested a herniated nucleus pulposus at this level. A myelogram revealed a round lesion almost completely obstructing the flow of Pantopaque at the L4-5 level. A ganglion cyst with a haemorrhage into it and the surrounding tissue was removed, and surgery was followed by complete recovery.
mesh_terms: D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D007796:Laminectomy; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009192:Myelography; D013115:Spinal Canal; D013122:Spinal Diseases / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D013131:Spine / Q000473:pathology; D013581:Synovial Cyst / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery