Dural arteriovenous fistula and cerebral venous thrombosis.

A 55-year-old man was admitted with Wernicke ́s aphasia and history of progressive headache in the past three weeks. Computed tomography showed a temporal lobar hemorrhage, transverse sinus thrombosis and suggested a dural arteriovenous fistula (DAF) (Figure 1). Digital subtraction angiography confirmed the DAF, which was successfully treated with embolization (Figure 2). DAF is a rare abnormal connection between dural veins and dural or pachymeningeal branches of cerebral arteries. DAF was reported in 1.6% of patients diagnosed with CVT, which in turn causes 0.5-1% of all strokes1,2. Prompt diagnosis of DAF in patients with CVT is crucial for appropriate treatment.