Table 5.
Cases with discordant results of HER2 protein staining between 2 or more pathologists
| HER2 protein staining results | Cases, n | DISH assay results |
|||
|---|---|---|---|---|---|
| negative | equivocal | positive | |||
| Negative/equivocal | 7 | 6 | 1 | 0 | |
| Equivocal/positive | 5 | 2 | 0 | 3 | |
| Negative/equivocal/positive | 7 | 7 | 0 | 0 | |
| Total | 19 | 15 | 1 | 3 | |
HER2, human epidermal growth factor receptor 2; DISH, dual in situ hybridization.