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Infrarenal abdominal aortic aneurysm and arc of Riolan

Case contributed by Vladislav Boyanov Rusinov
Diagnosis certain

Presentation

Asymptomatic patient

Patient Data

Age: 75 years
Gender: Male

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Infrarenal abdominal aortic aneurysm. Occlusion IMA.

Case Discussion

The SMA and IMA are linked through the marginal artery of Drummond and may also be connected through the arc of Riolan.

The arc of Riolan is situated medial to the mesenteric border of the colon, where it courses radially through the midportion of the mesenteric arcade, near the inferior mesenteric vein.

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