Fracture of the bronchus.

Traumatic rupture of the bronchus is an unusual condition, and is sufficiently rare to justify the reporting of one further case. The case presented shows many unusual features. The injury sustained may be termed simple fracture rather than rupture, or laceration of the bronchus. The common complications of this type of injury did not arise. Pneumothorax, bleeding into the pleural cavity, surgical emphysema, and collapse of the lung did not occur, presumably because the mucosa and membranous wall of the bronchus remained intact.