Carotid-cavernous sinus fistula: a case study.

Carotid-cavernous sinus fistulae are rare, but serious, vascular anomalies which may develop following traumatic injury to the skull base. Fractures or the shearing forces of severe head trauma may cause the internal carotid artery to be torn from its points of dural attachment and rupture, with resultant direct flow into the cavernous sinus. Current treatment options for carotid-cavernous sinus fistulae are surgery and coil embolization, with embolization being the most common.