Six major subtypes of ALL
| Subtype . | Occurrence, % . | Clinical character . |
|---|---|---|
| t(9;22)(BCR-ABL) | 2-3 | High risk |
| t(1;19)(E2A-PBX1) | 5 | Low risk |
| t(12;21)(TEL-AML1) | 16-22 | Normal ALL low risk |
| t(4;11)(MLL) | 5-8 | Infant ALL high risk |
| Hyperdiploid>50 | 25-35 | Normal ALL low risk |
| T-ALL | 10-13 | T-ALL moderate risk |
| Subtype . | Occurrence, % . | Clinical character . |
|---|---|---|
| t(9;22)(BCR-ABL) | 2-3 | High risk |
| t(1;19)(E2A-PBX1) | 5 | Low risk |
| t(12;21)(TEL-AML1) | 16-22 | Normal ALL low risk |
| t(4;11)(MLL) | 5-8 | Infant ALL high risk |
| Hyperdiploid>50 | 25-35 | Normal ALL low risk |
| T-ALL | 10-13 | T-ALL moderate risk |
ALL indicates acute lymphoblastic leukemia.