Posttraumatic intradural internal carotid artery-cavernous sinus fistula associated with ipsilateral carotid dissection. Transarterial embolization with detachable coils

We describe a relatively unusual case of traumatic direct carotid-cavernous fistula in association with a giant intradural venous pouch and ipsilateral carotid dissection, related to carotid artery fistula located in the supraclinoid segment just below the origin of posterior communicating artery. Endovascular therapy could be accomplished by use of detachable coils transarterially. Awareness of an unusual intradural origin of a carotid-cavernous sinus fistula and the possibility of an embolization should be kept in mind.