title: Sacrolithiasis. A case report.
abstract: In this paper we report a case of an extradural sacral cyst containing a stone.
mesh_terms: D000368:Aged; D001416:Back Pain / Q000209:etiology; D002137:Calculi / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D003560:Cysts / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008297:Male; D009192:Myelography; D012447:Sacrum; D013122:Spinal Diseases / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery