From the case:
Ductus diverticulum
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Sagittal C+ CTPA

Focal atheromatous aortic bulge involving the anteromedial aorta near the isthmus , compatible with a ductus diverticulum.
Case Discussion
This diverticulum would not be confused with a pseudoaneurysm, even in an acute traumatic setting, in the presence atheromatous calcifications.
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