P.144 Dural arteriovenous fistulas with associated intracranial tumors: review of literature

Background: Intracranial dural arteriovenous fistulas (DAVF) are relatively rare vascular malformations. While the pathophysiology of their formation is unknown, they believed to be acquired lesions related intracranial venous hypertension and dura sinus thrombosis. There have been reports tumors associated with DAVF. Here we complete a systematic search literature. Methods: A PRISMA literature was conducted identify papers in which an tumor thrombosis 24 relevant studies were identified analyzed, along case illustration. Results: total 38 cases DAVF concomitant identified. The median age 60, majority being meningiomas (71%), involved primarily transverse sigmoid (52%) superior sagittal (16%). most occlusion (39%) or partial (24%) sinus. classified as Borden Types I (35%), II (32%) III (24%). Endovascular treatment common intervention (56%), followed by combined approach (28%) vs surgery alone (16%), all reporting resolution. Conclusions: This highlights that DAVFs can rarely tumors, patterns these treatments.