Imaging and percutaneous treatment of vascular anomalies.

Vascular anomalies are an extensive group of malformations of the arterial, venous, and lymphatic systems, either in isolation or, more often, in combination. Although mostly congenital, they can occasionally be acquired as well. They present a challenge both for workup and therapy. This article attempts to describe some of their main anomalies, their workup, and their therapies, with the goal of increasing the comfort level of endovascular therapists.