Figure 3

Operative procedure. Almost no fissure in the left lung was identifiable after the arteries, veins, and bronchi were divided. After isolating and dividing the left inferior pulmonary vein (A), the lower bronchus (B) and the pulmonary artery (C: arrowhead, A6; asterisk, common basal artery), the residual lung was inflated to visualize the border with the lower lobe (D: white dotted line).