We report an unusual case of traumatic aortic rupture and lesion of the left main bronchus after blunt chest trauma in an 8-year-old otherwise healthy boy. The trauma mechanism was severe compression of the thoracic cavity underneath a heavy object without a deceleration component. The visceral lesions were disproportionally severe compared with the surface injury. This case shows the possibility of an osseous pinch after severe compression of the chest and the importance of meticulous examination and monitoring of the patient for complications afterwards.An 8-year-old boy was transferred to our institution with an aortic rupture after being caught under a tilting soccer goal frame during a match. He had been unconscious for a few moments, but on arrival at the local hospital the boy scored the full 15 points on the Glasgow Coma Scale. A left-sided tension pneumothorax was treated with a chest tube. A computerized tomographic (CT) scan showed bilateral contusions of the lungs, a small residual pneumothorax, a pneumomediastinum and a left-sided mediastinal hematoma with a possible aortic lesion at the level of the aortic isthmus, just distal to the origin of the left subclavian artery in the CT slices (Fig. 1a,b) and in a full reconstruction of the thoracic aorta (Fig. 2). The boy was transferred to our institution for surgery, awake and in a circulatory and respiratory stable condition. Because of the pneumomediastinum and the CT findings, we suspected an oesophageal or bronchial lesion This paper is available online at http://www.grandrounds-e-med.com. In the event of a change in the URL address, please use the DOI provided to locate the paper.