Extensive pulmonary contusion and deep sulcus sign


This case demonstrates the x-ray and CT appearance of extensive pulmonary contusion and of supine pneumothorax (deep sulcus sign). The extensive contusion and pneumothraces despite any rib fractures suggests airbag related barotrauma as the mechanism of injury.  This case also shows a nice example of air bronchograms and pneumopericardium on CT.