Table 1. HER2 protein and its gene status in the breast tumors.
IHC | FISH | Total | ||
Not amplified | Equivocal | Amplified | ||
1+ | 60 (89.55%) | 2 (2.99%) | 5 (7.46%) | 67 (57.76%) |
2+ | 23 (71.87%) | 3 (9.38%) | 6 (18.75%) | 32 (27.59%) |
3+ | 0 (0%) | 0 (0%) | 17 (100%) | 17 (14.65%) |
Total | 83 (71.55%) | 5 (4.31%) | 28 (24.14%) | 116 (100%) |
IHC: immunohistochemistry; FISH: fluorescence in situ hybridization.