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• W1566010689 abstract "Introduction: A dural arteriovenous fistula (DAVF) is an abnormal connection between the dural arteries or pachymeningeal branches of cerebral arteries and dural veins. Recurrent transient aphasia is an extremely rare presentation of DAVF.Case presentation: A 73 year-old Caucasian woman with hypertension, presented with acute development of fluent aphasia with paraphasic errors and inability to name, read, write or follow commands, right -sided sensory loss and right homonymous hemianopia for the third time in two weeks. Her aphasia spontaneously resolved after 48 hours. A head noncontrast-enhanced computed tomography showed decreased attenuation and edema in the left temporal lobe. A head computed tomography angiogram was notable for increased vascularity in the left posterior temporo-occipital lobes. Brain MRI was negative for restricted diffusion, but showed a large area of T2 signal abnormality in the left temporal and occipital lobes and an abnormal flow void in the left temporal lobe draining into the left transverse/sigmoid sinus junction. Catheter angiogram showed a Cognard Type IIB DAVF, featuring an arterialized loculated outflow in the sigmoid sinus. As tranvenous and transarterial approaches for obliterating the DAVF were unsuccessful, the patient underwent surgical obliteration of the abnormal vessels. A follow-up cerebral angiogram three months after the surgery, showed no evidence of residual arteriovenous fistula.Discussion: Because of non-specific clinical and radiographic features of the DAVF, their diagnosis is often delayed. Although non-invasive vascular imaging usually provides the first hints about the presence of a DAVF, Conventional catheter angiography is the diagnostic procedure of choice. To our knowledge, only one case of DAVF presenting with sensory aphasia was previously reported in the literature.Conclusion: This case illustrates that a vascular malformation can present with recurrent transient focal deficits. A well-defined hypodensity with increased vascularity is an uncommon early finding in acute ischemic stroke. In the setting of recurrent neurological deficits, these findings should prompt a thorough neurovascular evaluation. Disclosure: Dr. Nourbakhsh has nothing to disclose. Dr. Rojas -Martinez has nothing to disclose. Dr. Banerjee has nothing to disclose. Dr. Novakovic has nothing to disclose. Dr. Warnack has nothing to disclose." @default.
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• W1566010689 date "2014-04-08" @default.
• W1566010689 modified "2023-09-23" @default.
• W1566010689 title "Intracranial Dural Arteriovenous Fistula Presenting with Recurrent Transient Fluent Aphasia (P2.097)" @default.
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