Treatment of an arteriovenous shunt draining into a venous angioma by selective embolisation. A case report.

SUMMARY: We treated a 62-year-old woman who suffered from intraventricular haemorrhage. Angiography revealed an arteriovenous shunt draining into a venous angioma. She was successfully treated by obliteration of the arteriovenous shunt with transarterial embolisation. Angiography performed after embolisation demonstrated that the persisting venous angioma served as the draning vein for normal middle cerebral artery perfusion. We believe that selective arterial occlusion with preservation of the venous component is the best treatment for this type of mixed vascular malformation.