Fig. 2From: Left upper lung cancer with persistent left superior vena cava and left azygos vein: a case reportPersistent left superior vena cava(PLSVC) and left azygos vein (Chest CT which was shot 8Â months after surgery). The left azygos vein is not easy to be detected before surgery.(red arrow: left azygos vein, yellow arrow: PLSVC, blue arrow: left pulmonary artery trunk)Back to article page