Fig. 3

Chest X-ray and CT images showing pneumothorax, pneumomediastinum, and tracheal perforation. A Chest X-ray showed pneumothorax and pneumomediastinum before insertion of an additional thoracic drainage tube. Chest CT showed B pneumomediastinum and C tracheal perforation. The yellow, green, red, and blue arrows show pneumothorax, pneumomediastinum, the tracheal perforation, and esophagus, respectively