spinal AVM classification

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

• intramedullary
• extramedullary: 80%

Or into four types :

• type I: single coiled vessel (spinal 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

• Spinal AVM for further discussion

Siehe auch:

• Arteria spinalis anterior
• durale AV-Fistel
• spinale arteriovenöse Malformationen