Annals of Oncology 8:S25-S28, 1997
© 1997 European Society for Medical Oncology
CB/CC diffuse lymphoma: A distinct subtype of non-Hodgkin's lymphoma?
A study of 1593 patients from a Danish population-based registry
1 Department of Hematology Odense, Denmark
2 Department of Pathology, Odense University Hospital Odense, Denmark
Correspondence to: L. Munksgaard, MD Department of Hematology Odense University Hospital 5000 Odense C Denmark
Between 1983 and 1993, 3165 cases of non-Hodgkin's lymphoma (NHL) were reported to the West Danish Lymphoma Registry (LYFO). Out of these, 148 (4.7%) were of the CB/CC diffuse subtype according to the Kiel classification. However, in the new European-American NHL consensus classification (REAL, 1994), CB/CC diffuse lymphoma was categorized as a provisional subtype only.
In the LYFO material, death-probability curves show a significantly shorter survival in CB/CC diffuse than in CB/CC follicular. In order to detect further possible differences between CB/CC diffuse and other NHL subtypes, a number of clinical parameters at presentation were analyzed in a subset of five types of lymphoma. This subset included 148 cases of CB/CC diffuse, 435 cases of CB/CC follicular, 667 cases of CB diffuse, 202 cases of CC diffuse, and 131 cases of peripheral T-cell lymphoma.
Using logistic regression analysis, significant differences could be demonstrated between CB/CC diffuse and the four other subtypes as regards sex ratio, age distribution, and sites of both nodal and extranodal involvement. These findings indicate that CB/CC diffuse has a distinct clinical phenotype and imply the existence of real biological differences between CB/CC diffuse and other subtypes of lymphoma.
CB/CC diffuse lymphoma, clinical phenotype, logistic regression, non-Hodgkin's lymphoma