Table 1.
The 2008 WHO classification of myeloid neoplasms
| Myeloproliferative Neoplasms |
| Chronic myelogenous leukaemia, BCR-ABL1 positive |
| Chronic neutrophilic leukaemia |
| Polycythaemia vera |
| Primary myelofibrosis |
| Essential thrombocythaemia |
| Chronic eosinophilic leukaemia, NOS |
| Mastocytosis |
| Myeloproliferative neoplasm, unclassifiable |
| Myeloid and Lymphoid Neoplasms with Eosinophilia and Abnormalities of PDGFRA PDGFRB or FGFR1 |
| Myelodyspastic/Myeloproliferative Neoplasms |
| Chronic myelomonocytic leukaemia |
| Atypical chronic myeloid leukaemia, BCR-ABL1 negative |
| Juvenile myelomonocytic leukaemia |
| Myelodysplastic/myeloproliferative neoplasm, unclassifiable |
| Refractory anaemia with ring sideroblasts associated with marked thrombocytosis |
| Myelodysplastic Syndromes |
| Refractory cytopenia with unilineage dysplasia |
| Refractory anaemia with ring sideroblasts |
| Refractory cytopenia with multilineage dysplasia |
| Refractory anaemia with excess blasts |
| Myelodysplastic syndrome associated with isolated del(5q) |
| Myelodysplastic syndrome, unclassifiable |
| Childhood myelodysplastic syndrome |
| Refarctory cytopenia of childhood |
| Acute Myeloid Leukaemia (AML) and Related Precursor Neoplasms |
| AML with recurrent genetic abnormalities |
| AML with t(8;21)(q22;q22); RUNX1-RUNX1T1 |
| AML with inv(16)(p13.1q22) or t(16;16)(p13.1;q22); CBFβ-MYH11 |
| Acute promyelocytic leukemia with t(15;17)(q22;q12); PML-RARA |
| AML with t(9;11)(p22;q23); MLLT3-MLL |
| AML with t(6;9)(p23;q34); DEK-NUP214 |
| AML with inv(3)(q21q26.2) or t(3;3)(q21;q26.2); RPN1-EVI1 |
| AML (megakaryoblastic) with t(1;22)(p13;q13); RBM15-MKL1 |
| Provisional entity: AML with mutated NPM1 |
| Provisional entity: AML with mutated CEBPA |
| AML with myelodysplasia-related changes |
| Therapy-related myeloid neoplasms |
| Acute myeloid leukaemia, not otherwise specified |
| AML with minimal differentiation |
| AML without maturation |
| AML with maturation |
| Acute myelomonocytic leukaemia |
| Acute monoblastic and monocytic leukaemia |
| Acute erythroid leukaemia |
| Acute megakaryoblastic leukaemia |
| Acute basophilic leukaemia |
| Acute panmyelosis with myelofibrosis |
| Myeloid sarcoma |
| Myeloid proliferations related to Down syndrome |
| Blastic plasmacytoid dendritic cell neoplasm |