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Polysomy 17 according to immunohistochemical scoring and fluorescence in situ hybridization analysis
| Polysomy 17 | Non-polysomy 17 | ||||
| IHC score | FISH normal | FISH amplified | Polysomy 17 (%) | FISH normal | FISH amplified |
| 0 | 0/8 | 0/0 | 0 | 8/8 | 0/0 |
| 1+ | 0/20 | 0/0 | 0 | 20/20 | 0/0 |
| 2+ | 13/66 | 0/12 | 17 | 53/66 | 12/12 |
| 3+ | 1/1 | 8/68 | 15 | 0/1 | 60/68 |
| Total | 14/95 (15%) | 8/80 (10%) | 13 | 81/95 (85%) | 72/80 (90%) |
FISH, fluorescence in situ hybridization; IHC, immunohistochemistry.
