Adult BCP-ALL | Pediatric BCP-ALL | |||||||
Cytogenetic Markers | Frequency | Frequency | ||||||
Present Study | Western population | Asian population | Present Study | Western population | Asian population | |||
China | Japan | China | Japan | |||||
Hyperdiploid High Hyperdiploidy Low Hyperdiploidy | 24% 9% 15% | 7% - 10% - - | 3% - - | - - - | 44% 27% 17% | 25% - 30% - - | 12% - - | - |
Tri-tetraploidy | 2.5% | 1% | - | - | 2% | 1% | - | - |
Hypodiploidy Low Hypodiploidy High Hypodiploidy | 13% 4% 9% | 1% - 3% - - | 2% - - | - - - | 8% 2% 6% | 2% - 5% - - | 3% - - | - |
Haploidy | 0.5% | 1>% | - | - | 0.3% | 1>% | - | - |
+4, +10, +17 | 19% | - | - | - | 41% | 40% - 65% | - | - |
t(9;22) | 27% | 25% - 30% | 28% | 7% | 6% | 2% - 5% | 6% | 3% |
t(12;21) | 0.2% | 2% - 3% | 0% | 5% | 12.2% | 20% - 25% | 13% - 19% | 13% |
(iAMP21) | 0.4% | - | - | 3% | 1% | 1% - 3% | - | 2% |
t(1;19) | 4% | 3% | 1% | 5% | 7% | 5% - 6% | 3% | 6% |
t(17;19) | - | - | - | - | 0.6% | - | - | - |
MLL translocations | 2.4% | 5% - 10% | 2% | 3% | 3% | 5% - 8% | 1.5% | 1.6% |