Results: Of 60 cases of pediatric large B cell lymphoma, CD20 (+), the rate of diffuse large B cell lymphoma, not otherwise specified was 81.7%; in which the Burkitt / Burkitt pattern accounted for 31.7%; diffuse large B cell lymphoma, not otherwise specified, germinal center B-cell like, accounted for 50%; diffuse large B cell lymphoma, not otherwise specified, non - germinal center B-cell like subgroups: 18.3%.