Anomalies of the inferior vena cava in patients with deep venous thrombosis. Pictorial essay.

The incidence of agenesis of inferior vena cava in the general population was estimated at 0.6 - 0.8%. In patients with deep vein thrombosis the frequency of agenesis was estimated between 5 and 6.7% in young people. In this pictorial essay, we present the ultrasound findings obtained in 8 patients with high deep venous thrombosis and inferior vena cava anomaly (absence of a segment), compared with images obtained by angio-computed tomography or magnetic resonance imaging. At the end we discuss the place of abdominal ultrasound in the evaluation of these patients.