Table 1.

Clinicopathological characteristics of enrolled patients and examined lymph nodes.

Case number	Age (years)	Sex	Histological grade	Tumor location	Tumor depth (T)	Nodal status (N)	Stage	Number of examined nodes
1	81	Female	Diff.	A	T4a	N2b	IIIC	3
2	75	Female	Diff.	A	T3	N1a	IIIB	6
3	74	Female	Diff.	S	T4a	N0	IIB	4
4	70	Male	Diff.	S	T2	N0	I	4
5	65	Male	Diff.	A	T3	N1b	IIIB	4
6	63	Male	Diff.	A	T3	N0	IIA	3
7	67	Male	Diff.	D	T4a	N1b	IIIB	5
8	69	Male	Diff.	S	T2	N0	I	7
9	66	Male	Diff.	R	T3	N1a	IIIB	5
10	46	Male	Diff.	R	T3	N2b	IIIC	9
11	72	Male	Diff.	C	T3	N0	IIA	7
12	61	Female	Diff.	S	T3	N2a	IIIB	9
13	83	Female	Undiff.	S	T4a	N1b	IIIB	12
14	56	Male	Diff.	S	T3	N2b	IIIC	9

Abbreviations: Diff., Differentiated; Undiff., Undifferentiated; A, Ascending colon; C, Cecum; R, Rectum; D, Descending colon; S, Sigmoid colon; Classified according to the 7th edition of UICC TNM classification for CRC.