Spinal subarachnoid hematoma resulting from lumbar myelography.

  title={Spinal subarachnoid hematoma resulting from lumbar myelography.},
  author={Michael D. Sather and Michael D. Gibson and John S Treves},
  journal={AJNR. American journal of neuroradiology},
  volume={28 2},
We describe a rare complication of myelography. A subarachnoid filling defect was apparent on the postmyelographic CT but not on conventional myelography. MR imaging performed later showed a spinal subarachnoid hematoma (SSAH), extending from L3 to L5. Lumbar puncture may rarely be a cause for SSAH and is more common in patients with coagulopathy. Significant back pain, paresis, radiculopathy, and even altered consciousness or meningeal signs may herald an SSAH. 


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