“Hepatic hilum area priority, liver posterior first”: An optimized strategy in laparoscopic resection for type III-IV hilar cholangiocarcinoma

Figure 1 Intraoperative trocar location description. A: The locations of the trocars for left hepatic/central hepatic (Couinaud IV, V, and VIII) resection combined with caudate lobe resection and biliary anastomosis; B: The locations of the trocars for right hepatic resection combined with caudate lobe resection and biliary anastomosis.