Fig. 4From: A right pulmonary vein abnormality treated with 3D CT assistance in thoracoscopic surgery for esophageal cancer: a case reportThe variation of the inflow site of the pulmonary vein. A The cases of the superior pulmonary vein flowing into the right superior pulmonary vein. B The cases of the inferior pulmonary vein. C The cases in which the right inferior pulmonary vein formed an independent branch of V6. D The cases of direct flow into the left atriumBack to article page