Superior mesenteric vessel anatomy features differ in Russian and Chinese patients with right colon cancer:computed tomographybased study

To the Editor:The literature has registered a considerable interest among Western surgeons in the role of extended lymph node dissection in right hemicolectomy.There are a lot of voices of dissent regarding the harvest of nodes lying dorsally to the superior mesenteric vein(SMV)and superior mesenteric artery(SMA).