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Inflammatory aneurysm of the superior mesenteric artery

Case contributed by Christof Igler
Diagnosis almost certain


60 year old male patient with acute onset of abdominal pain. Fever and elevated markers of inflammation. Prior cardiac surgery.

Patient Data

Age: 60
Gender: Male

Saccular aneurysm of the SMA with adjacent stranding of the mesenteric fat

Case Discussion

Superior mesenteric artery (SMA) aneurysms account for 5.5% of all visceral aneurysms. The SMA is the third most common site.

Inflammatory aneurysms arise from an infection of the arterial wall, usually bacterial. It is a complication of the hematogenous spread of bacterial infection, classically from the heart.

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