CT - Chest CT
There is a large mediastinal haematoma centered around the aorta. There is a traumatic pseuodoaneurysm of the aorta at the level of the aortic isthmus consistent with contained aortic rupture. Airspace opacity is seen posteriorly within the right upper lobe and within the posterior portions of both lower lobes most consistent with pulmonary contusion. Within the apical segment of the right lower lobe two small traumatic pneumatoceles are identifed. No fractures.