Clinicopathologic features of 11 cases of lymphoma cell leukemia(LCL) in childern′s non Hodgkin lymphoma were studied.There were 3 cases of cleaved noncleaved,4 cases of non cleaved and 4 cases of lymphoblastoma;stage Ⅲ7 cases and Ⅳ4 cases;9 cases of quickly local lymphadenopathy,7 cases of system superficial lymphadenopathy,4 cases of abdominal mass,3 cases of mediastinal mass,10 cases of liver enlargement,7 cases of splenomegaly,9 cases of fever and weight loss,8 cases of marked elevation of WBC count,10 cases of decrease of Hb and thrombo...