Arteriovenous malformations AVMs are uncommon errors of vascular morphogenesis; haemodynamically, they are high-flow lesions. Subtotal excision or proximal ligation of the feeding vessel frequently results in rapid progression of the AVMs. Hence, the correct treatment consists of highly selective embolisation super-selective followed by complete resection 24—48 hours later. We treated 20 patients with facial arteriovenous malformation by using this method.

Arterial enhanced CT scan of the face demonstrates a very large arteriovenous malformation involving most of the right side of the face. Supply is predominantly via the left external carotid artery as well as muscular branches from the vertebral artery note how large the left vertebral artery is. Areas of hyperdensity within the malformation represent previous attempts at embolization. Updating… Please wait. Unable to process the form.

Arteriovenous malformations AVMs are rare congenital vascular malformations accounting only 1. It usually results from birth defects of the vasculature. A literature search revealed only few case reports of AVMs in the facial region. Lack of meticulous diagnosis, scarcity of knowledge, and paucity of literature can result in their exsanguinations leading to fatal hemorrhagic incidents after various dental procedures such as tooth extraction, surgical intervention, puncture wound, or blunt injury in involved area.

At Houston Methodist, our neurosurgeons and interventional radiologists diagnose and treat many kinds of cerebrovascular conditions, including arteriovenous malformations AVMs of the head, neck and face. AVMs are rare, abnormal tangles of blood vessels in which connections form between arteries and veins directly bypassing capillaries , disrupting the natural blood flow. AVMs can be congenital present at birth or may form during adulthood; they may also grow or disappear with time. The appearance of the AVM depends on the size of the blood vessel involved. The affected area may have a pink-blue tint, which can darken over time.