In all patients with a median age of 38.5(15-83) years, acute monoblastic and monocytic leukemia (M5), AML with t(15;17)/PML-RAR? (APL) and AML with t(8;21)/AML1-ETO(M2b) were the most common subtypes, accounting for 29.7%, 20.9% and 14.6% respectively. 