Expansion of the subarachnoid space in the lumbosacral region.
D000328:Adult; D000368:Aged; D005242:Fecal Incontinence; D005260:Female; D006801:Humans; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D008297:Male; D008588:Meningocele / Q000473:pathology*; D008875:Middle Aged; D009192:Myelography; D009456:Neurofibromatosis 1 / Q000150:complications; D013346:Subarachnoid Space / Q000000981:diagnostic imaging*; D014054:Tomography