"Extended" radical cholecystectomy for gallbladder cancer: Long-term outcomes, indications and limitations

Figure 1 "Extended" radical cholecystectomy for gallbladder cancer. The dashed line indicates the scope of wedge resection of the gallbladder fossa (about 2 cm in thickness or more). The double-headed arrows indicate lines of division of the extrahepatic bile duct. The pale blue area indicates the extent of regional lymph node dissection, which achieves en bloc harvesting of both the first-echelon nodes (cystic duct and pericholedochal node groups) and the second-echelon nodes (posterosuperior pancreaticoduodenal, retroportal, right celiac, and hepatic artery node groups)[11,15]. GB: Gallbladder.