Dural arteriovenous malformation

Dural arteriovenous malformation (DAVM) is an arteriovenous communication or arteriovenous fistula in the dura mater. It is supplied by the dura mater artery or the dura mater of the intracranial artery and returns to the venous sinus or arterialized meningeal vein. In essence, DAVM is based on one or more arteriovenous fistulas of the dura mater, so it was also called dural arteriovenous fistula. However, most of the arteriovenous fistulas are acquired lesions. Using ldquo; dural arteriovenous malformations rdquo; this name can better reflect the characteristics of congenital origin of some lesions.