在胰腺肿瘤的手术时 ,有关肝动脉变异是一个值得注意的问题 ,从肠系膜上动脉分出肝总或肝右动脉是该区域的常见变异。Ｍｉｃｈｅｌｓ的解剖统计提示起自肠系膜上动脉的肝固有干而无源自腹腔动脉的肝总动脉占 4 .5% ,源自肠系膜上动脉的“变位”肝右动脉占 1 1 %。这些“变位” In the surgery of pancreatic tumors, the hepatic artery variability is a matter of concern. The division of the total or the right hepatic artery from the superior mesenteric artery is a common variation in this area. Michels’s anatomical statistics suggest that the hepatic artery stems from the superior mesenteric artery but not from the celiac artery, which accounts for 4.5% of the common hepatic artery, and the right hepatic artery, which is displaced from the superior mesenteric artery, accounts for 11%. These “changes”