A step with relative bulge is seen at the isthmus of the thoracic aorta just distal to the visible ligamentum arteriosum. No definite intimal flap or mural haematoma is identified. Soft tissue density is seen in the anterior mediastinum, this is suspicious for mediastinal haematoma. Pulmonary contusions are seen in the right middle and lower lobe. Small right sided pleural fluid collection, which is most likely haemothorax. No pneumothorax identified. Displaced right mid-clavicular fracture, posterior 4th rib fracture, minimally displaced 2nd rib fracture, non-displaced right lateral 5th rib fracture.