Congenital agenesis of inferior vena cava as a rare cause of deep vein thrombosis: Case report and review of the literature

Inferior vena cava agenesis (IVCA) is an uncommon cause of deep vein thrombosis (DVT). We report the case of a 26-year-old Caucasian female with unilateral iliofemoral DVT. On further evaluation, CT abdomen revealed diminutive inferior vena cava consistent with IVCA. We have used systemic anticoagulation and catheter mediated thrombolysis with success in this case. Physicians should suspect IVCA in patients with extensive DVT especially in younger individuals.