There is a saccular outpouching seen originating from the medial side of the proximal descending aorta 2.3 cm distal to the left subclavian artery with approximate dimensions of 2.6 x 1.5 x 2.6 cm. Given the history of trauma, the above finding is indicative of a pseudoaneurysm.
There is minimal pericardial effusion.
Atelectatic changes are seen in both lungs.
Soft tissue emphysema at the anterolateral chest wall is demonstrated.