Classification of non-Hodgkin lymphoma in Algeria according to the World Health Organization classification.

Publisher: Taylor & Francis Country of Publication: United States NLM ID: 9007422 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1029-2403 (Electronic) Linking ISSN: 10268022 NLM ISO Abbreviation: Leuk Lymphoma Subsets: MEDLINE

Publication: [Philadelphia, PA] : Taylor & Francis
Original Publication: Chur ; New York : London, UK : Harwood Academic Publishers ; Distributed by STBS, 1989-

Lymphoma, Non-Hodgkin/*classification ; Lymphoma, Non-Hodgkin/*epidemiology; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Algeria/epidemiology ; B-Lymphocytes/pathology ; Child ; Europe/epidemiology ; Female ; Humans ; Killer Cells, Natural/pathology ; Lymphoma, Follicular/epidemiology ; Lymphoma, Large B-Cell, Diffuse/epidemiology ; Lymphoma, Mantle-Cell/epidemiology ; Lymphoma, T-Cell/epidemiology ; Male ; Middle Aged ; North America/epidemiology ; T-Lymphocytes/pathology ; World Health Organization ; Young Adult

The relative distribution of non-Hodgkin lymphoma (NHL) subtypes differs markedly around the world. The aim of this study was to report this distribution in Algeria. A panel of four hematopathologists classified 197 consecutive cases according to the World Health Organization classification, including 87.3% B-cell and 12.7% T- or natural killer (NK)-cell NHLs. This series was compared with similar cohorts from Western Europe (WEU) and North America (NA). Algeria had a significantly higher frequency of diffuse large B-cell lymphoma (DLBCL: 52.8%) and a lower frequency of follicular lymphoma (FL: 13.2%) compared with WEU (DLBCL: 32.2%; FL: 20.0%) and NA (DLBCL: 29.3%; FL: 33.6%). The frequency of mantle cell lymphoma was lower in Algeria (2.5%) compared with WEU (8.3%). Smaller differences were also found among the NK/T-cell lymphomas. In conclusion, we found important differences between Algeria and Western countries, and further epidemiologic studies are needed to explain these differences.

Keywords: Algeria; Non-Hodgkin lymphoma; diffuse large B-cell lymphoma; epidemiology

Date Created: 20140712 Date Completed: 20160404 Latest Revision: 20190116

20221213

10.3109/10428194.2014.939967

25012941