Fig. 2. (A) External carotid artery angiography identifies the dural arteriovenous fistula vascularized by the petrosqumosal branch of left middle meningeal artery (MMA) and drained into the transverse-sigmoid sinus. (B) Intraoperative angiogram of MMA indicates the microcatheter superselectively advanced into the petrosqumosal branch to eliminate the feeder and arteriovenous shunting.
