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Comparison between IHC and FISH test for the diagnosis of EPS.
| CD99 antibody | EWSR1 break apart | |
|---|---|---|
| Number of cases | 56 | 56 |
| Sensitivity | 88% | 100% |
| Specificity | 58% | 87% |
| PPV | 48% | 89% |
| NPV | 92% | 100% |
| Youden's index | 0,55 | 0,9 |
Abbreviations: NPV: negative predictive value, PPV: positive predictive value.
