Incidence of low grade non hodgkin lymphoma (real), in a captive population from Argentina

R. F. Bezares, F. Cueva, A. Arra, D. Martorelli, C. Baldornir, R. Gonzalez-Boix, H. Boubeta, A. Livio, C. A. Marin, L. Celebrin, D. Lafalce

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Introduction: From January 1993 to December 1998,378 new lymphoma (according to REAL) were diagnosed in our center in which Argentina bank employees and relatives are assisted (about 400000 inhabitants all over the country); therefore, we consider it a representative sample. The majority of our population has Italian or Spanish origin. Material and Methods: In this six-year period, the incidence of non Hodgkin lymphoma(NHL) (334 patients) and Hodgkin lymphoma (44 patients), was 13.9 and 1.8 cases/100000 inhabitants per year, respectively. The incidence of B-cell Lymphoma was 91.3%. while only 8,7% of the population displayed T-cell phenotype. Hereby, we report the incidence of peripheral B-cell lymphoma excluded Multiple Myeloma, Burkitt and Large Cell lymphoma. Results: Two hundred and two patients (111 males and 91 females) diagnosed lowgrade B-cell lymphoma were admitted in this six-year period. The calculate crude incidence was 8,33/100000 inhabitants/year. Male/Female ratio was 1.2, with a mean age of 72 years (r=40-93). Chronic lymphocytic leukemia/small lymphocytic lymphoma/prolymphocytic leukemia (SCLL) was 37%, follicular lymphoma (FL):36% and lymphoplasmocytoid lymphoma(LPL) 114%). Marginal zone lymphoma represents the 5,4% of all patients; nodal (MZL) 0,5%, extranodal (MALT)=3,4%, and splenic with villous lymphocytes (SMZL) 1,5%. Mantle cell lymphoma (MCL) and hairy cell leukemia (HCL)have an incidence of 4,4% and 3%, respectively. The incidence of lymphoma subtypes per 100000 inhabitants/year is show in table Subtype SCLL HCL MALT LPL MCL FL Incid. 3,12 0,25 0,45 1,17 0,37 3.04 Conclusions: The incidence and histologie patterns of NHL found in this institutional population could be considered representative of NHL incidence in Argentina. It is comparable to the incidence of NHL in European countries of Latin origin. Also, this incidence differs from other Latin American countries with large population of natives, in these countries T-cells malignancies are more frequent, like as Oriental populations. This could be related to similar anthropological origins.

Original languageEnglish
Issue number11 PART II
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Hematology

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    Bezares, R. F., Cueva, F., Arra, A., Martorelli, D., Baldornir, C., Gonzalez-Boix, R., Boubeta, H., Livio, A., Marin, C. A., Celebrin, L., & Lafalce, D. (2000). Incidence of low grade non hodgkin lymphoma (real), in a captive population from Argentina. Blood, 96(11 PART II).