RADIOLOGY: AORTA: Case# 34027: AORTIC TRANSECTION. 30 year old male involved in motor vehicle accident. 1. Severe thoracic trauma as above. 2. Multiple pelvic fractures without large hematomas. 3. No definite aortic injury is seen, however subtle arch contour abnormalities are present. If a high index of suspicion exists for aortic injury, an aortogram may be appropriate.