Dural arteriovenous fistula

Discussion:

Intracranial dural arteriovenous fistulae are abnormal communications between dural arteries and dural venous sinuses, cortical veins or meningeal veins. This case demonstrates a dural arteriovenous fistula in the left transverse sinus in the setting of chronic dural venous sinus thrombosis, which is a known predisposing factor. Multiple feeders from the branches of the external carotid artery are seen to supply the fistula. Cerebral angiography would be the next step for classification and management of the dural arteriovenous fistula.

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