Described as two or more vascular malformations found in a person lesion. Abnormalities within the origin/course/number of major blood vessels that have anatomical names Syndromes by which vascular malformations are difficult by signs aside from vascular anomalies Lesions are in near proximity to special constructions or obstruct inflow and outflow https://www.sgvascularctr.com/service/vascular-malformations/