Pre- and postoperative MRI. 4.a) Preoperative MRI showed dextroposition and mesocardia, lower right pulmonary vein connecting to the inferior vena cava. Right upper and middle pulmonary veins draining in the superior vena cava and the azygos vein. 4.b) Postoperative MRI revealed the superior vena cava draining into the right atrium. The upper and middle pulmonary veins as well as the scimitar vein are redirected with a baffle into the left atrium.