[An acute myeloid leukemia (AML) with at least 20% blasts in the marrow or blood, and dysplasia in 2 or more myeloid cell lines. Dysplasia must be present in at least 50% of the cells of at least 2 cell lines. Patients with this type of AML often present with severe cytopenia. The presence of multilineage dysplasia has an adverse effect on the probability of achieving complete remission. (WHO, 2001) ( NCI )]
UMLS (NCI) C1292773