Fig. 2From: Isolated subdural hematoma secondary to Dural arteriovenous fistula: a case report and literature review(a) Preoperative DSA of the right external carotid artery shows that the DAVF is fed by the branch of MMA and OA, and drains to the dilated occipital cortical vein. (b) DSA of the right vertebral artery shows that the DAVF also receives blood supply from the PMA. (c-d) DAVF disappears after Onyx embolization injection via the branch of MMA. DSA: digital subtraction angiography; DAVF: dural arteriovenous fistula; MMA: middle meningeal artery; OA: occipital artery; PMA: posterior meningeal arteryBack to article page