Rare combined variations of accessory left hepatic artery and accessory right hepatic artery: a case report and literature review.

Variations in the hepatic artery are commonly described in the literature, which is vital for the success procedure of all hepatobiliary surgery. Usually a variation occurs in either the accessory right hepatic artery (aRHA) or the accessory left hepatic artery (aLHA). However, we report an extremely rare case where the variation occurs in both simultaneously. We over served the aRHA arising from the gastroduodenal artery and branching into the superior pancreatic duodenum artery, while the aLHA arose from the common hepatic artery and branched into right gastric artery. This situation has never been reported in literature. We will discuss the meaning of this hepatic artery variation in a clinical setting.