Acute Myelomonocytic Leukemia one of the more common types of acute myelogenous leukemia, characterized by both malignant monocytes and myeloblasts; it usually affects middle aged to older adults, although it affects people of all ages. AML sometimes is caused by chemotherapy or radiation therapy given to treat another cancer.
In AML, immature leukemia cells rapidly accumulate in the bone marrow, destroying and replacing cells that produce normal blood cells. The leukemia cells are released into the bloodstream and are transported to other organs, where they continue to grow and divide. They can form small masses (chloromas) in or just under the skin or gums or in the eyes. There are several subtypes of AML, which are identified based on characteristics of the leukemia cells.