Table 2.

Immunohistochemical results

Score	No. of patients (n)
	Calretinin	WT-1	pCEA	Ber-Ep4	EGFR	p16	MMP-2	MMP-9
0	0	0	35	35	2	14	0	5
+1	0	5	0	0	1	11	2	9
+2	1	6	0	0	3	6	3	8
+3	6	5	0	0	7	2	7	8
+4	28	19	0	0	22	2	23	5

The immunohistochemistry stains were scored as 0 (negative), +1 (< 25%), +2 (25%-50%), +3 (50%-75%), and +4 (75%-100%). pCEA: Pathologic carcinoembryonic antigen; EGFR: Epidermal growth factor receptor; MMP: Matrix metalloproteinase.