atypical chronic myeloid leukemia, BCR-ABL1 negative

A myelodysplastic myeloproliferative neoplasm characterized by the principal involvement of the neutrophil series with leukocytosis and multilineage dysplasia. The neoplastic cells do not have a Philadelphia chromosome or the BCR/ABL fusion gene.

Also known as: aCML; atypical CML; atypical chronic myeloid leukaemia; atypical chronic myeloid leukaemia BCR-ABL1 negative; atypical chronic myeloid leukemia BCR-ABL1 negative