Fig. 1From: Composite resection of the left upper lobe and superior segment (S6) of the lower lobe for lung cancer with a mediastinal lingular and basal pulmonary arteryChest computed tomography (CT) (a, b axial view and c coronal view) demonstrated the tumor invading the left upper bronchus in the left upper lung lobe, and the A3 and A6 branches were involved in the tumor. d Three-dimensional CT revealed that pulmonary artery branches (A4 + 5, A8, and A9 + 10) extended into the dorsal side of the superior pulmonary veinBack to article page