Regional lymphadenectomy for gallbladder cancer: Rational extent, technical details, and patient outcomes

Table 2 Topographical distribution of 3352 lymph nodes evaluated in 152 patients with gallbladder cancer

Node group	No. of patients with node group evaluated	No. of lymphnodes evaluated		No. of patients with positive nodes	No. ofpositive nodes
		Range per patient (median)	Total		Range per patient (median)	Total
First-echelon node groups
Pericholedochal1	152	0-9 (2)	410	43	1-9 (1)	75
Cystic duct	152	0-2 (1)	109	30	1-2 (1)	33
Second-echelon node groups
Retroportal	152	0-9 (3)	458	23	1-5 (2)	47
Posterior superior pancreaticoduodenal2	150	0-9 (2)	341	20	1-7 (1)	37
Hepatic artery	148	0-12 (3)	536	20	1-10 (1)	50
Right celiac3	128	0-8 (2)	320	15	1-4 (1)	28
Hilar (porta hepatis)	121	0-5 (0)	37	0	NA	0
More distant node groups
Superior mesenteric	50	0-14 (2)	171	4	1-5 (2)	10
Posterior inferior pancreaticoduodenal	38	0-7 (1)	56	3	1-5 (2)	8
Anterior superior pancreaticoduodenal	29	0-5 (0)	19	1	1-1 (1)	1
Anterior inferior pancreaticoduodenal	27	0-4 (0)	15	2	1-3 (2)	4
Perigastric	52	0-23 (2)	205	4	1-1 (1)	4
Paraaortic node groups	934	1-28 (6)	675	15	1-16 (2)	59

¹Also referred to as retroduodenal nodes in the NCCN guidelines[11];

²Also referred to as posterosuperior pancreaticoduodenal nodes in our previous study[6] or superior retropancreaticoduodenal nodes by Uesaka et al[22];

³Also referred to as posterior common hepatic nodes by Uesaka et al[22];

⁴Includes 55 who underwent a paraaortic lymph node dissection and 38 who underwent a sampling of paraaortic nodes for staging of the disease.