Objective To observe the clinical and laboratory features of infantile acute leukemia.Methods We respectively reviewed and analyzed the clinical and laboratory data of 15 patients from December 1999 to June 2011.Results In the 15 patients,6 were acute lymphoblastic leukemia,8 were acute myeloid leukemia,and the classification of leukemia of the rest one was unknown;among whom,the M4(4 cases) and M5(3 cases) subtypes were the most common types,comprising 50% and 37.5% of AML respectively.The clinical manifes...