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Fig. 1 —Bronchial anastomotic dehiscence. Schematic diagram shows telescoped anastomosis (A). In B, blue arrow indicates infold or pseudodiverticulum (other blue arrows indicate air). Purple arrow shows contained leak, a small pocket of air trapped in omental wrap. Note that air pocket does not communicate with airway. Drawings C–E show development of dehiscence and its progression. Membranous part of trachea is the most vulnerable. Extraluminal air communicates with airway and progresses if not diagnosed early.