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Table 2 Summary of HER2 manual grading and FISH scores

From: Computer-assisted assessment of the Human Epidermal Growth Factor Receptor 2 immunohistochemical assay in imaged histologic sections using a membrane isolation algorithm and quantitative analysis of positive controls

FISH Score

IHC = 0

IHC = 1

IHC = 2

IHC = 3

Total

≤ 1.7

25

22

15

6

68

1.8 – 2.2

1

1

2

0

4

≥ 2.3

2

3

5

17

27

Total

28

26

22

23

99