Intracranial dural arteriovenous fistula with perimedullary drainage treated by endovascular embolization

Abstract

. However, these findings, in concomitance with extensive dilated perimedullary vessels, suggested my-elopathy secondary to dural arteriovenous fistula (DAVF).Digital angiography identified a Cognard type V intracranial DAVF (Figure 2). After prompt endovascular treat-ment (Figure 3), complete remission of symptoms was obtained.Despite its intracranial location, type V DAVF presents, by definition, perimedullary venous drainage, which leads to venous congestion, and, consequently, intramedullary edema, progressive myelopathy and chronic hypoxia