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Table 3 Intra-laboratory correlation between CISH and IHC

From: Chromogenic in situ hybridisation for the assessment of HER2 status in breast cancer: an international validation ring study

 

IHC

 

Own CISH (number of signals)

0/1+

2+

3+

n

<5

44

44

6

104

5

2

1

1

4

6

1

5

3

9

>6

2

15

75

92

No signal

1

0

1

2

Total

50

75

86

211

  1. CISH, chromogenic in situ hybridisation; IHC, immunohistochemistry.