Caroticocavernous fistula classification
Caroticocavernous fistula can be broadly classified as direct or indirect.
Barrow et al. (1985) proposed a four-type classification
Type A: direct connection between the intracavernous ICA and CS.
Type B: dural shunt between intracavernous branches of the ICA and CS.
Type C: dural shunt between meningeal branches of the ECA and CS.
Type D: B + C
- Barrow DL, Spector RH, Braun IF, et al "Classification and treatment of spontaneous carotid-cavernous fistulas." J Neurosurg 1985;62:248–56