Inferior vena cava agenesis presenting as deep venous thrombosis

Abstract

Inferior vena cava agenesis (IVCA) is a rare congenital malformation caused by dysgene-sis during embryogenesis. The condition is often asymptomatic due to the development of collateral venous circulation. It carries a significant risk for deep venous thrombosis (DVT), especially in young people as a result of venous stasis in the lower extremities. The rarest form is infrarenal and renal segment hypoplasia, followed by hypoplasia only of the infrarenal segment. The first episode of deep venous thrombosis usually occurs before the fourth decade, with no gender predilection.

Keywords

• anticoagulants, deep venous thrombosis, inferior vena cava agenesis, thrombectomy, thrombolysis