Comparative analysis of radiofrequency ablation and resection for resectable colorectal liver metastases

Table 3 Summary of pathological findings

No.	Metastatic tumor size (cm)	Diff	T	N	M	LNR	LV	PN
1	2.5	Mod	3	2	0	0.23	Pos	Pos
2	1.6	Mod	3	2	0	0.17	Pos	Pos
3	4	Mod	4	2	0	0.37	Pos	Pos
4	4.2	Mod	4	1	0	0.43	Pos	Pos
5	3.2	Mod	3	1	1	0.07	Pos	Neg
6	4.2	Mod	2	2	0	0.25	Pos	Pos
7	4	Mod	3	0	1	0	Pos	Pos
8	2.8	Mod	4	0	0	0	Pos	Pos
9	4.4	Mod	1	2	0	0.06	Neg	Neg
10	4.9	Well	3	1	1	0.03	Pos	Neg
11	2.8	Mod	3	0	0	0	Neg	Pos
12	2.3	Mod	4	1	0	0.08	Neg	Neg
13	3.2	Mod	4	2	1	0.33	Neg	Pos
14	1.2	Mod	3	2	0	0.14	Pos	Pos
15	0.9	Poor	3	2	0	0.12	Pos	Pos
16	1.7	Poor	3	1	0	0.04	Pos	Pos
17	2	Mod	3	1	0	0.03	Neg	Neg
18	1	Mod	3	2	0	0.34	Pos	Pos
19	2.5	Mod	4	0	0	0	Neg	Neg
20	2	Mod	3	1	0	0.14	Pos	Pos
21	1.6	Mod	3	1	0	0.08	Pos	Pos
22	1	Mod	3	1	0	0.04	Pos	Pos
23	3.8	Mod	2	0	0	0	Neg	Neg
24	3.7	Mod	3	0	1	0	Neg	Neg
25	1	Mod	3	0	0	0	Neg	Neg
26	3.6	Mod	4	2	1	0.58	Neg	Pos
27	1.2	Mod	3	0	0	0	Pos	Pos
28	0.8	Mod	4	1	1	0.03	Neg	Neg
29	1.3	Mod	3	0	0	0	Neg	Neg

Diff: Differentiation of primary tumor; T: T stage; N: N stage; M: M stage; LNR: Lymph node ratio; LN: Lymphovascular invasion; PN: Perineural invasion; Mod: Moderate; Poor: Poorly; Pos: Positive; Neg: Negative.