Traumatic pneumothorax


The case demonstrates traumatic pneumothorax caused by penetrating or blunt trauma to the chest.

The supine pneumothorax is best confirmed on full expiration, but imaging in an erect position is preferred if the condition of the patient allows it. 

In this example the pneumothorax seems to be small in the supine projection, while the erect radiograph reveals its full extent (necessitating placement of a chest tube).