Cytogenetic Markers | Adult T-ALL | Pediatric T-ALL | ||
Frequency | Frequency | |||
Present Study | Western population | Present Study | Western population | |
Hypodiploidy Low Hypodiploidy High Hypodiploidy | 20% 5% 15% | - | 18% 2% 16% | - |
Hyperdiploid Low Hyperdiploidy High Hyperdiploidy | 14% 12% 2% | - | 11% 10% 1% | - |
Tri-tetraploidy | 5% | - | 5% | - |
del(9p) | 32% | 40% - 50% | 44% | 50% - 60% |
MLL translocations | 1.3% | 4% | 5% | - |
TCRα, TCRβ | 18% | 20% - 30% | 21% | 20% - 30% |
TLX1 | 4% | 15% - 20% | 2.4% | 5% - 10% |
TLX3 | 8% | 10% - 20% | 11% | 20% |