Phases of chronic myelogenous leukemia
| Characteristic | Chronic | Accelerated | Blastic |
|---|---|---|---|
| Blasts (%) | 1–15 | ≥ 15 | ≥ 30 |
| Basophils (%) | Increased | ≥ 20 | Any number |
| Platelets | Increased or normal | Increased or decreased | Decreased |
| Bone marrow | Myeloid hyperplasia | ||
| Duration | 4–6 years | Up to 1 year | 3–6 months |
Based on information in references 3 and 4.