====== Arteriovenous fistula ======

An arteriovenous [[fistula]] is an abnormal connection or passageway between an [[artery]] and a [[vein]]. It may be congenital, surgically created for [[hemodialysis]] treatments, or acquired due to pathologic process, such as trauma or erosion of an arterial [[aneurysm]].

===== Classification =====

[[Dural arteriovenous fistula]].

[[Scalp arteriovenous fistula]].

[[Spinal Arteriovenous fistula]].