title: Engorged and tortuous intradural filum terminale vein as a sign of a sacral dural arteriovenous malformation.
abstract: Sacral spinal dural arteriovenous (AV) malformation is rare and its clinical features are not specific to differentiate sacral dural AV malformation from the superiorly located ones. A sacral dural AV malformation, therefore, is usually diagnosed after negative thoracic and lumbar arteriograms. In this report, we propose a myelographic or magnetic resonance (MR) sign of engorged and tortuous intradural filum terminale vein as an indication of a sacral dural AV malformation. When this sign is seen, pelvic arteriography should be performed first.
authors.affiliation: 2nd Department of Diagnostic Radiology, Chang Gung Memorial Hospital and University, 199 Tung Hwa North Road, Taipei, Taiwan, ROC. radcjc@cgmh.org.tw
authors.forename: Chi Jen
authors.initials: CJ
authors.lastname: Chen
authors.forename: Hui Ling
authors.initials: HL
authors.lastname: Hsu
mesh_terms: D000368:Aged; D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000628:therapy; D002420:Cauda Equina / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000473:pathology; D004388:Dura Mater / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology; D004621:Embolization, Therapeutic; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009192:Myelography; D012445:Sacrococcygeal Region; D014680:Veins / Q000002:abnormalities