Embolization is defined as the “therapeutic introduction of various substances into the circulation to occlude vessels, either to arrest or prevent haemorrhaging; to devitalize a structure, tumour, or organ by occluding its blood supply; or to reduce blood flow to an arteriovenous malformation.”
Venous malformations are the most common vascular malformation and are generally found in the head and neck area or in the extremities. Accurate diagnosis is necessary to establish cause and determine treatment.