Clonal hematopoietic stem cell disorders characterized by dysplasia in one or more hematopoietic cell lineages. They predominantly affect patients over 60, are considered preleukemic conditions, and have high probability of transformation into ACUTE MYELOID LEUKEMIA.

Synonyms: Myelodysplastic Syndromes, Dysmyelopoietic Syndromes, Hematopoetic Myelodysplasia, Myelodysplastic Syndrome, Myelodysplasias, Hematopoetic, Syndromes, Myelodysplastic, Hematopoetic Myelodysplasias, Syndromes, Dysmyelopoietic, Dysmyelopoietic Syndrome, Myelodysplasia, Hematopoetic, Syndrome, Myelodysplastic, Syndrome, Dysmyelopoietic