A: Axial chest computed tomogram (CT) image with lung-window setting reveals overdistention of the endotracheal tube (arrow head) and a large defect of.

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 Lungs: o WW 1000 to 1500HU o WL -600 to -700HU  Mediastinum, Hilum: o WW 350 to 500HU o WL 30 to 50HU.

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Presentation transcript:

A: Axial chest computed tomogram (CT) image with lung-window setting reveals overdistention of the endotracheal tube (arrow head) and a large defect of the membranous part of the trachea (arrow) with air tracking into the mediastinum, causing mediastinal and subcutaneous emphysema. A: Axial chest computed tomogram (CT) image with lung-window setting reveals overdistention of the endotracheal tube (arrow head) and a large defect of the membranous part of the trachea (arrow) with air tracking into the mediastinum, causing mediastinal and subcutaneous emphysema. A collapsed right upper lobe (*) is also noted. B: Bronchoscopy shows a large laceration and a false tract (*) in the posterior tracheal wall (picture was taken at 4 cm above the carina). C: A follow-up axial CT scan on day 22 at the same level as Figure 2A shows improvement of the ruptured site, with complete resolution of the mediastinal and subcutaneous emphysema. Re-expansion of the right upper lobe is shown. D: A follow-up bronchoscopy on day 20, after deflating the cuff, shows healing of the ruptured site (*) (picture was taken at 4.5 cm above the carina). Viboon Boonsarngsuk et al. Respir Care 2012;57:1191-1194 (c) 2012 by Daedalus Enterprises, Inc.