The Vascular Anomalies team treats infantile hemangioma, capillary malformations (also known as port-wine stains), venous malformation, lymphatic malformation and arteriovenous malformation, in addition to rarer vascular anomalies. Vascular anomalies look like a birthmark but are defected and enlarged blood vessels. These anomalies can occur at birth or up to several years after birth. They can be congenital, developed during pregnancy, as a part of a syndrome, or acquired by trauma. Normally, vascular anomalies are found on the head or neck.