Fig. 1

A Preoperative selective cerebral DSA showed the presence of falcotentorial DAVF fed from the left posterior cerebral artery and branches of the right middle meningeal artery (black arrow). Vein draining into the cavernous sinus and superior and inferior ophthalmic veins (white arrow). B Preoperative MR (i–ii T2 WI) and enhanced MR (iii–iv) showed an enlarged left side superior ophthalmic vein (white arrow), and a flow void effect was observed (i–ii)