The intimal defect is located just distal of the left subclavian artery, which is typical for a traumatic rupture. On this level the patient also has vertebral fractures and a shoulder fracture.

The wall of the descending aorta is thickened and shows  mild concentric enhancement, the intima is displaced medially (calcifications). This means that there is a tear or hematoma in the media. Since there is no typical "flap" as seen with most type B dissections, it is considered as an "atypical aortic dissection" with intramural hematoma.