Arcs of Buhler and Riolan

Case contributed by Dr Alex Jarema


Thoracic back pain. ?aortic dissection.

Patient Data

Age: 60
Gender: Female

No evidence of aortic dissection.

High-grade stenoses of the origins of the coeliac trunk and superior mesenteric arteries. There is a large anastomic vessel arising from the inferior mesenteric artery, traveling superiorly to communicate with the superior mesenteric artery (Arc of Riolan).

There is a tangle of vessels between the superior mesenteric artery and coeliac trunk, appearing to communicate with both vessels (Arc of Buhler).

Case Discussion

High grade stenoses of the coeliac trunk and superior mesenteric artery have resulted in the development of enlarged collateral pathways between the IMA and SMA (Arc of Riolan), and the SMA and coeliac trunk (Arc of Buhler).

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Case information

rID: 58486
Published: 19th Feb 2018
Last edited: 16th Jul 2018
Inclusion in quiz mode: Included

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