Table 3.
Scoring system based on 11-marker combination (12).
| Marker | -2 | -1 | +1 | +2 |
|---|---|---|---|---|
| CD5 | ≥75% | <75% positive | ||
| CD8 | ≥5% positive | <5% positive | ||
| CD13 | ≥25% positive | ≥75% positive | ||
| CD33 | ≥25% positive | ≥75% positive | ||
| CD34 | ≥25% positive | ≥75% positive | ||
| HLA-DR | ≥25% positive | ≥75% positive | ||
| CD2 | ≥75% positive | <20% positive | ||
| CD3 | ≥75% positive | <20% positive | ||
| CD4 | ≥75% positive | <20% positive | ||
| CD10 | ≥75% positive | <20% positive | ||
| CD56 | ≥20% |
ETP-ALL had a score >6 with a sensitivity of 100% and a specificity of 94%.