An 84-year-old man with a history of chronic bronchitis and recurrent respiratory infections was admitted for transapical aortic valve replacement. After endotracheal intubation and tube-cuff inflation, severe peri-tubal air leak was identified. Three reintubations were performed and finally, 9.0mm tube was placed that allowed limited leakage to a clinically acceptable value. Surgery was performed without further complications.

However, postoperative CT images were evaluated (as indicated in the attached images). Identify this condition and possible etiology. *This case is from Docplexus editorial team for educative purpose only. Source: NEJM Stay Connected, the answer will be posted in the next 48h!