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 28 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.
This neoplasm is one of the myeloidleukemias in which 80% or more of the leukemic cells are of monocytic lineage. Myeloid associated non-specific cytogenetic abnormalities are present in the majority of cases but do not provide a definitive diagnosis.