Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the stages of Childhood Acute Myeloid Leukemia and Other Myeloid Malignancies ?
    ### Response:
    Key Points
                    - Once childhood acute myeloid leukemia (AML) has been diagnosed, tests are done to find out if the cancer has spread to other parts of the body.    -  There is no standard staging system for childhood AML, childhood chronic myelogenous leukemia (CML), juvenile myelomonocytic leukemia (JMML), or myelodysplastic syndromes (MDS).
    