Drainage of the Inferior Vena Cava Into the Left Atrium with Atrial Septal Defect and Partial Anomalous Pulmonary Venous Return: Initial and Postoperative Computed Tomography (CT) Findings

Anomalous drainage of the inferior vena cava into the left atrium is a rare congenital vascular disorder. It can occur with atrial septal defect, anomalous pulmonary venous drainage, and pulmonary arteriovenous fistula. Here by we describe the computed tomography (CT) findings of a rare combination of drainage of the inferior vena cava associated with atrial septal defect and partial anomalous pulmonary venous return. CT angiography is useful for early detection of this combined anomaly and for proper surgical planning.