Volume-rendered image multidetector-row computed tomography (MDCT). A - Blue-colored vessels return to the superior vena cava (SVC). The arrow indicates a high connected pulmonary vein. The arrowhead indicates the left persistent SVC. B, C - Target vessel-enhanced image derived from MDCT. The arrow indicates the highest SVC site connection, which without this image is at risk of being mistaken for the azygos vein. The arrowhead indicates the azygos vein. D - A target component-enhanced image derived from MDCT. The arrow indicates the anastomosis site of the left atrium appendage with the vertical vein. The asterisk (green) indicates the left atrium.