Lateral Marginal Vein: Have We Understood its Significance?

Abstract

The lateral marginal vein is one form of truncular venous malformation seen commonly in Klippel–Trenaunay syndrome. It is characterized by avalvulosis and presents with features of chronic venous insufficiency. As there can be associated intravascular thrombosis, there is an increased risk of venous thromboembolism and pulmonary embolism. In children, it can cause vascular bone syndrome. Surgical excision is indicated when possible to prevent complications.