Lumbar epidural gas

Lumbar epidural gas is a rare phenomenon where gas locules are observed within the central canal of the lumbar spine. It can arise from a number of factors:

  • due to regional degenerative disc disease with or without dorsal epidural disc migration: thought to be from gas leaking from the disc space to the epidural area through the tears of annulus fibrosus, occurring mostly with herniated fragments 4
  • traumatic pneumorrhachis
  • postoperative pneumorrhachis
  • from a degenerative spinal synovial cyst
  • from a gas containing herniating regional ganglion cyst

Article information

rID: 63420
System: Spine
Synonyms or Alternate Spellings:
  • Lumbar epidural air locules

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Cases and figures

  • Case 1: post-traumatic pneumorrhachis
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