Figure 1. A: Airway reconstruction showed a tubular shadow at the terminal of the right main bronchus before surgery (red arrow); B: Transverse view showed a gas shadow in front of the esophagus at the level of the diaphragm (red arrow); C: Loss of shape showed the diaphragm with gas shadow in front of the esophagus (red arrow); D: Airway reconstruction showed tubular shadow disappeared with a blind end after surgery (red arrow)