CTICasesTraumatic Ascending Aortic Pseudoaneurysm and Sternal Fracture
Imaging findings
Contrast-enhanced CT of the chest demonstrates a severe, displaced sternal fracture and a localized pseudoaneurysm of the ascending aorta just above the aortic root. There is also extensive subcutaneous emphysema, rib fractures, and pleural fluid.
Key takeaways
Blunt chest trauma can lead to rapid deceleration injuries, which classically affect the aortic isthmus, but can rarely cause ascending aortic pseudoaneurysms or ruptures, particularly when associated with high-force direct impacts resulting in severe sternal fractures. Survival from ascending aortic tears is exceedingly rare and requires rapid recognition and surgical repair.
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