Engorged and tortuous intradural filum terminale vein as a sign of a sacral dural arteriovenous malformation.
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.
Chen
Chi Jen
CJ
2nd Department of Diagnostic Radiology, Chang Gung Memorial Hospital and University, 199 Tung Hwa North Road, Taipei, Taiwan, ROC. radcjc@cgmh.org.tw
Hsu
Hui Ling
HL
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