Abstract
Dural arteriovenous fistula (DAVF) is a relatively rare disease, accounting for about 10-15% of intracranial arteriovenous malformations. Multiple DAVF is very rare, accounting for about 7% of intracranial DAVF. In the present case, transarterial embolization (TAE) was performed in a 73-year-old female patient with a history of transarterial embolization (TAE) for carotid-cavernous fistula (CCF) 5 years previously. She had a contralateral transverse-sigmoid DAVF (T-S DAVF) that presented with intraventricular hemorrhage. Angiography revealed contralateral, transverse-sigmoid dural AVF. While multiple DAVF often occurs on the ipsilateral side, it can arise on the contralateral side in the presence of abnormal coagulation and fibrinolysis. The present histopathological analysis is very valuable and useful for investigating the etiology of multiple DAVF. In the future, long-term radiological follow-up will be necessary for patients with multiple DAVF.
