<qa>  What is the cytological type according to the FAB classification?DISEASE CHARACTERISTICS: Newly diagnosed, untreated acute myelogenous leukemia AML, as follows: Any cytological type according to the FAB classification At least 30 blast cells in bone marrow smear required Secondary acute leukemia eligible, i.e.: AML cured Hodgkins disease or other malignancy AML following exposure to alkylating agents or radiation The following are specifically excluded: Blast crisis of chronic myeloid leukemia Leukemia supervening after other myeloproliferative disease Leukemia supervening after overt myelodysplastic disorder e.g., refractory anemia with excess blasts of more than 6 months duration 