Figure 2:

(A) CT image 1 month after the operation. Over-retention of pleural effusion required 2 weeks readmission and chest drainage. The density of the muscle flap is less than that of normal chest wall muscles, which may indicate degeneration of the muscle flap. (B) CT image 8 months after the operation. Pleural effusion, as well as the residual pleural space, has almost disappeared with excellent middle lobe expansion and fixation. The serratus anterior muscle flap is fixed backwards in the pleural cavity.