Spinal AVM classification

Spinal arteriovenous malformations can be classified in a number of ways:

  • intramedullary
  • extramedullary: 80% 1

Or into four types 2:

  • type I: single coiled vessel (dural AV fistula)
  • type II: intramedullary glomus AVM
  • type III: juvenile 
  • type IV: intradural perimedullary (AV fistula)
    • sub type I: single arterial supply (ASA), single small fistula, slow ascending perimedullary venous drainage
    • sub type II: multiple arterial supply (ASA and PSA), multiple medium fistulae, slow ascending perimedullary venous drainage
    • sub type III: multiple arterial supply (ASA and PSA), single giant fistula, large ectatic venous drainage

See also

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Article Information

rID: 2068
Synonyms or Alternate Spellings:
  • Spinal AVM classifications
  • Spinal arteriovenous malformation classification

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