Acute myeloid leukemias that do not fulfill the criteria for inclusion in the group of acute myeloid leukemias which have recurrent genetic abnormalities or myelodysplastic changes, or are therapy-related. This category includes entities classified according to the French-American-British classification scheme. The disease is MONDO_0015667 (acute myeloid leukemia by FAB classification). Also known as: AML, NOS, acute myeloid leukaemia NOS, acute myeloid leukaemia not otherwise categorised, acute myeloid leukaemia not otherwise specified, acute myeloid leukemia NOS, acute myeloid leukemia not otherwise categorized, acute myeloid leukemia not otherwise specified, acute myeloid leukemia, NOS.