FAB classification is still useful because of its simpleness however it is inadequate in differentiating how leukemias should be treated. The newer WHO classification system provisions a better hierarchy of relatedness between leukemias.
- AML-M0 Undifferentiated acute myeloblastic leukemia
- AML-M1 Acute myeloblastic leukemia with minimal maturation
- AML-M2 Acute myeloblastic leukemia with maturation
- AML-M3 Acute promyelocytic leukemia
- AML-M3m
- AML-M4 Acute myelomonocytic leukemia
- AML-M4e Acute myelomonocytic leukemia with eosinophila
- AML-M5a Acute monocytic leukemia
- AML-M6 Acute erythroid leukemia
- AML-M7 Acute megakaryocytic leukemia
- AML-ML
- ABL (basophillic)
- ALL-L1 (found mostly in children)
- ALL-L2 (found mostly in older children and adults)
- ALLL-3 (associated with Burkitt’s Lymphoma)
- ALL-4
- JMML
- aCMML
- CMML