Abstract
BACKGROUND AND IMPORTANCE Intraosseous dural arteriovenous fistulae (DAVF) are rare, especially those with drainage into the diploic venous system. The clinical presentation depends on the location of the lesion. This is the first report of an intraosseous DAVF associated with acute epidural hematoma. CLINICAL PRESENTATION A 25-year-old man presented with headache and nausea. Imaging of the brain revealed abnormal signals indicative of acute epidural hematoma in the right frontal convexity. Angiography demonstrated a DAVF in the region of the frontal bone. Right external carotid artery angiography showed that the DAVF was fed mainly by the right middle meningeal artery with drainage into diploic veins. Immediately after embolization of the middle meningeal and the distal internal maxillary artery with 17% N-butyl-2-cyanoacrylate, the shunt was completely occluded. The patient was discharged 4 days later without clinical complications. CONCLUSION Intraosseous DAVF can be treated by surgical resection or endovascular embolization. Curative treatment requires careful inspection of the angiographic architecture and microsurgical anatomy.
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