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Background: Celiac artery stenosis and occlusion have been described rarely in patients undergoing pancreaticoduodenectomy (PD), although it occurs relatively frequently in this group. An arterial connection between the celiac and superior mesenteric arteries, known as the Arc of Buhler, provides alternative flow to the celiac distribution once the gastroduodenal artery (GDA) is ligated in PD. Case Presentation: A 69-year-old man, in whom pre- and intraoperative efforts to stent an occluded celiac artery failed, had sufficient retrograde flow from an unrecognized Arc of Buhler to maintain adequate hepatic arterial perfusion after ligation of the GDA during a PD. Conclusions: Although there are several case reports and case series regarding the management of celiac stenosis in PD, the impact of an Arc of Buhler variant in this setting has been rarely reported. This case report demonstrates the ability of an intact Arc of Buhler to maintain adequate hepatic perfusion after ligation of the GDA and avoid the potential morbidity of a hepatic artery bypass procedure.

Leveraging Aberrant Vasculature in Celiac Artery Stenosis: The Arc of Buhler in Pancreaticoduodenectomy