Intrapulmonary Segment in Anomalous Pulmonary Venous Connection

Abstract

Three cases showing a large anomalous venous channel in the right lung are presented. In each case the large vein was a part of a pulmonary venous collateral system in association with anomalous pulmonary venous connection, partial in one case, and total in two. In two of the cases, each of which was an example of total anomalous pulmonary venous connection, the anomalous vein in the right lung received the entire venous system of the left lung. In the two cases with conventional roentgenograms the anomalous vein within the right lung was apparent. Its shape, in some respects, resembled that of the anomalous pulmonary vein in the scimitar syndrome. Selective pulmonary arteriography appears to offer the best means of differentiation between an anomalous vein of the type described here and that of anomalous drainage of the hypoplastic right lung to the inferior vena cava (the scimitar syndrome).