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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
