Fig. 2

Laparoscopic infrapyloric lymph nodes dissection through the right bursa omentalis approach. a The groove between the head of pancreas and the transverse mesocolon should be exposed (indicated by the broken line). b The right gastroepiploic vein (RGEV) should be ligated and divided distal to the confluence point between the right gastroepiploic vein and anterior superior pancreaticoduodenal vein (ASPDV). c The right gastroepiploic artery (RGEA) should be divided just distal to the branching point of anterior superior pancreaticoduodenal artery from gastroduodenal artery (indicated by the broken line). IPA infrapyloric artery