Abstract

Reprospective pathologic study of 86 cases of non-Hodgkin's lymphomas, obtaining from 1973 to 981, was performed. It was subclassified according to criteria of Rappaport and was assesed for age, sex, and sites. The result were obtained as follows; 1) In the 86 patients, 5 had nodular lymphomas and 81 had diffuse lymphomas. 2) The most common subtype is diffuse histiocytic(29.1%), and followed in order by diffuse poorly differentiated lymphocytic(20.9%), diffuse mixed(18.6%), diffuse lymphoblastic(12.8%) diffuse well differentiated lymphocytic(11.6%), nodular mixed(3.4%), nodular poorly differentiated lymphocytic(1.2%), nodular well differentiated lymphocytic(1.2%), and diffuse undifferentiated(1.2%). 3) The male to female ratio of the entire group was 4:4.1. 4) The mean age of the entire group was 35.7%) years. The diffused histiocytic is most old(39.4 years), and the diffuse lymphoblastic is most young (16.5 years). 5) The sites of the lymphomas are cervical lymph node(40.7%), gastro-intestinal tract(26.7%), inguinal lymph node(11.6%), tonsil(10.5%), skin and subcutaneous tissue(4.6%), nasopharynx(3.5%), bone(1.2%), and orbit(1.2%). 6) Among the histiocytic types, extranodal sites involvement are 56% of the cases.