摘要: Vascular anomalies are classified into vascular tumors and malformations based on the classification system of International Society for Study Anomalies (ISSVA) [1, 2]. characterized by proliferation tumor enlargement, most common is infantile hemangioma, while a less hemangiopericytoma. consist non-proliferating lesions in which blood flow misdirected through anomalous channels. Malformations exist spectrum, ranging from high-flow arteriovenous malformation (AVM), low-flow venous (varix) lymphovenous malformations, capillary-venous malformations. Flow characteristics influence natural history helpful making correct diagnosis.