Blunt chest trauma.

The spectrum of injuries after blunt chest trauma presents a challenging problem to the emergency physician. The clinician must select among a number of diagnostic tests and therapeutic options after the initial history and physical examination has been performed. Nine clinical entities are discussed: sternal fracture, flail chest, pulmonary contusion, tracheobronchial injuries, myocardial contusion, myocardial rupture, aortic disruption, esophageal perforation, and diaphragm rupture. Emphasis is placed on newer diagnostic modalities available for these conditions.