Chronic refractory anemia with granulocytopenia, and/or thrombocytopenia. Myeloblasts and progranulocytes constitute 5 to 40 percent of the nucleated marrow cells.

Synonyms: Smoldering Leukemias, RAEM, Smouldering Leukemia, Refractory Anemia with Excess of Blasts, Anemia, Refractory, with Excess of Blasts, Smoldering Leukemia, RAEB, Leukemia, Smouldering, Leukemias, Smoldering, Leukemia, Smoldering