Metastasis of primary gallbladder carcinoma in lymph node and liver

Table 2 Comparison of depth of invasion of the tumor (T) and lymph node metastases (N).

Depth of tumor	No. of patients with lymph node metastasis
	N0	N1	N2	Para-aortic lymph node
T1 (n = 6)	5	1	0	0
T2 (n = 8)	6	1	1	1
T3 (n = 5)	1	2	2	0
T4 (n = 26)	4	11	11	3
Total (n = 45)	16	15	14	4

T and N were based on TNM staging of the American Joint Committee on Cancer (AJCC).