Subarachnoid Hemorrhage with Concurrent Dural and Perimedullary Arteriovenous Fistulas at Craniocervical Junction: Case Report and Literature Review

摘要

BACKGROUND: The association between a dural arteriovenous fistula (dAVF) perimedullary arteriovenous fistula (AVF) is rarely observed at the cranio-cervical junction (CCJ). We present a case of subarachnoid hemorrhage (SAH) with concurrent dAVF and perimedullary AVF at the CCJ. Here, we describe the cause of bleeding and the process of determining whether it was a varix or an arterial aneurysm.