Clinical significance of variant hepatic artery in pancreatic resection: A comprehensive review

Figure 8 A rare replaced right hepatic artery from the superior mesenteric artery susceptible to injury during pancreaticoduodenectomy. A: Coronal maximum intensity projection image showed Michels type IV hepatic artery variant; B. Intraoperative image showed that replaced right hepatic artery (rRHA) originated from the superior mesenteric artery and traveled to the right behind the inferior margin of the pancreatic neck via the superior mesenteric vein anteriorly and gave rise to the gastroduodenal artery and proper hepatic artery. LGA: Left gastric artery; rLHA: Replaced left hepatic artery; SMA: Superior mesenteric artery; GDA: Gastroduodenal artery; SMV: Superior mesenteric vein; PHA: Proper hepatic artery; rRHA: Replaced right hepatic artery.