Abstract
An arteriovenous malformation (AVM) is a congenital, nonhereditary defect of the vascular system, where a normal capillary system does not exist between an artery and a vein, and arterial blood passes directly into the venous system. In this localized arteriovenous shunt exists a tangle of vascular channels and veins with fibrointimal thickening and elastic tissue destruction [1]–[5]. AVMs begin to develop in utero and grow unpredictably over time. Although AVMs may occur anywhere along the neuraxis, they most commonly occur in the brain and may be detected using computed tomography (CT) or magnetic resonance imaging (MRI). Cerebral angiography confirms the diagnosis.