Abdominal aortic aneurysm: dense rim sign

Case contributed by Mr Yusuf Hakim

Presentation:

Incidental finding on ultrasound

Patient Data:

Age: 80
Gender: Male
Modality: Ultrasound

Longitudinal view of the aneurysmal sac, clearly showing the thrombus located anteriorly and posteriorly. Transverse view of the aortic aneurysm, showing a concentric thrombus.

Modality: CT

CTA shows mild enhancement of the thrombus in the aneurysm, so-called "dense rim sign" which is frequently seen in case of a pending rupture

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