Arc of Buhler

Arc of Buhler is a direct arterial anastomosis between the superior mesenteric artery and the celiac trunk. The arc of Buhler results from failure of regression of an anastomotic vessel between the 10th and 13th ventral segmental arteries off the aorta (the future celiac trunk and superior mesenteric artery, respectively). It is found in less than 5% of the population and has a diameter of less than 2.5 mm.

References

Saad WE, Davies MG, Sahler L, Lee D, Patel N, Kitanosono T, Sasson T, Waldman D. Arc of buhler: incidence and diameter in asymptomatic individuals. Vasc Endovascular Surg. 2005 Jul-Aug;39(4):347-9.