SEER is an authoritative source of information on cancer incidence and survival in the United States. SEER currently collects and publishes cancer incidence and survival data from population-based cancer registries covering approximately 30 percent of the U.S. population.
AML in which 80% or more of the leukemic cells are of monocytic lineage including monoblasts, promonocytes and monocytes; a minor neutrophil component, less than 20%, may be present. In acute monoblastic leukemia (FAB M5a), the majority of the monocytic cells are monoblasts. In acute monocytic leukemia (FAB M5b), the majority are promonocytes.