Defined as two or maybe more vascular malformations located in one particular lesion. Abnormalities within the origin/course/number of key blood vessels that have anatomical names Syndromes where vascular malformations are sophisticated by symptoms aside from vascular anomalies The potential risk of perioperative morbidity and mortality raises with expanding Spetzler-Martin grade. https://vannevarj307zgn2.mysticwiki.com/user