Table 3

Comparison of gene amplification analysis and immunohistochemical results of HER-2/neu in 47 cases of ESCC

IHC
c-erbB-2
FISH HER-2



Not Amplified (%)
Polysomy 17 (%)
Amplified (%)
Total

0/1+
10 (30.3)
1 (20)
0 (0)
11

2+
13 (39.4)
2 (40)
0 (0)
15

3+
4 (12.1)
2 (40)
6 (66.7)
12

NA
6 (18.2)
0 (0)
3 (33.3)
9

Total
33 (100)
5 (100)
9 (100)
47

NA: not available

Sato-Kuwabara et al. BMC Cancer 2009 9:6   doi:10.1186/1471-2407-9-6