Diffuse large B‐cell lymphoma: clinical implications of extranodal versus nodal presentation – a population‐based study of 1575 cases

Summary Differences in genetic origin between nodal and extranodal diffuse large B‐cell lymphomas (DLBCL) exist. Using population‐based data from the registry of the Danish Lymphoma Group, the present study is the first to analyse clinical implications of nodal versus extranodal presentation of DLBCL. Of 4786 newly diagnosed non‐Hodgkin's lymphoma patients in a 16‐year period, 1575 (33%) had DLBCL. The annual incidence rate was 2·9 per 100 000;...