pathological and clinical characteristics of 84 cases of non-hodgkin's lymphoma

non-hodgkin's lymphoma is the 3rd most common cancers in children. in the present study, to determine pathological and clinical features of this cancer, we reviewed records of 84 cases of non-hodgkin's lymphoma who were admitted to ali asghar and bahrami children hospitals from 1989 to 1996. 59% of cases had small non-cleaved cell (sncc) subtype of disease. 15% were lymphoblastic and 5% diffuse large cell subtype. the most prevalent primary sites were abdomen and lymph nodes. the most prevalent symptoms were abdominal mass (34%), abdominal pain (37%) and cervcal lymphadenopathy (26%). over half of our patients were small non-cleaved cell subtype, and further studies should be done to find out reasons for this unusual finding.