Radical lymph node dissection and assessment: Impact on gallbladder cancer prognosis

Table 2 Topographical distribution of 465 lymph nodes evaluated in 78 patients with gallbladder cancer n (%)

Node group	Patients with node group	Lymph nodes evaluated	Patients with positive	Positive nodes
	evaluated		nodes
Cystic duct1	41 (53.95)	46 (9.89)	18 (23.08)	19 (19.39)
Pericholedochal1	68 (81.18)	146 (31.40)	20 (25.64)	29 (29.59)
Periportal1	47 (60.26)	74 (15.91)	12 (15.38)	18 (18.37)
Hepatic artery1	48 (61.54)	69 (14.84)	10 (12.82)	12 (12.24)
Posterosuperior pancreaticoduodenal2	22 (28.21)	56 (12.04)	6 (7.69)	12 (12.24)
Hilar1	18 (23.08)	26 (5.59)	4 (5.13)	6 (6.12)
Right celiac2	8 (10.26)	21 (4.52)	1 (1.28)	2 (2.04)
Perigastric2	4 (5.13)	6 (1.29)	0 (0.00)	0 (0.00)
Superior mesenteric artery2	6 (7.69)	11 (2.37)	0 (0.00)	0 (0.00)
Paraaortic2	6 (7.69)	10 (2.15)	0 (0.00)	0 (0.00)
Sum	78 (100)	465 (100)	37 (47.44)	98 (100)

¹First-station nodes;

²Second-station nodes; according to the American Joint Committee on Cancer cancer staging manual (7^th edition). Here, hilar lymph nodes classified as first-station nodes and perigastric lymph nodes classified as second-station nodes.