AB subtype | Name | % of adult AML patients | Prognosis compared to average for AML |
---|---|---|---|
M0 | Undifferentiated acute myeloblastic leukemia | 5% | Worse |
M1 | Acute myeloblastic leukemia with minimal maturation | 15% | Average |
M2 | Acute myeloblastic leukemia with maturation | 25% | Better |
M3 | Acute promyelocytic leukemia | 10% | Best |
M4 | Acute myelomonocytic leukemia | 20% | Average |
M4 eos | Acute myelomonocytic leukemia with eosinophilia | 5% | Better |
M5 | Acute monocytic leukemia | 10% | Average |
M6 | Acute erythroid leukemia | 5% | Worse |
M7 | Acute megakaryoblastic leukemia | 5% | Worse |
Subtypes M0 through M5 all start in precursors of white blood cells. M6 AML starts in very early forms of red blood cells, while M7 AML starts in early forms of cells that make platelets.