Aged ; Central Nervous System Vascular Malformations/diagnostic imaging ; Central Nervous System Vascular Malformations/etiology* ; Cerebral Angiography ; Craniotomy/adverse effects* ; Humans ; Intracranial Arteriovenous Malformations/diagnostic imaging ; Intracranial Arteriovenous Malformations/surgery* ; Male ; Pia Mater/blood supply*
Keywords
arteriovenous malformation ; dura ; surgery
Abstract
The etiology of dural arteriovenous malformation (AVM) is still uncertain, and the occurrence of postoperative dural AVM has rarely been proved angiographically. The authors present a case of dural AVM in the jugular and the sigmoid sinuses, which developed 1 year after resection of a pial AVM via the craniotomy. A possible mechanism underlying this case of dural AVM is discussed.