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ALK Immunohistochemistry as compared to ALK FISH results following comprehensive molecular and clinical review of discrepant cases.
| ALK FISH | ||||
|---|---|---|---|---|
| ALK Immunohistochemistry | Positive | Negative | Total | |
| Negative | 1 | 162 | 163 | |
| Low (1+) | 4 | 0 | 4 | |
| High (2+) | 9 | 0 | 9 | |
| Total Positive | 13 | 0 | 13 | |
| Total | 14 | 162 | 176* | |
Total case tally does not include 10 cases that were insufficient either by FISH and/or IHC.
