title: Transsacral puncture of the arachnoidal sac. An alternative procedure to lumbar puncture.
mesh_terms: D000328:Adult; D004569:Electroencephalography; D005260:Female; D006801:Humans; D007403:Intervertebral Disc; D008159:Lumbar Vertebrae; D008297:Male; D008722:Methods; D008875:Middle Aged; D009192:Myelography; D009456:Neurofibromatosis 1 / Q000000981:diagnostic imaging; D012447:Sacrum; D013122:Spinal Diseases / Q000000981:diagnostic imaging; D013129:Spinal Puncture