Classification of non-Hodgkin lymphoma in Algeria according to the World Health Organization classification.
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.
['Boudjerra|Nadia|N|', 'Perry|Anamarija M|AM|', 'Audouin|Josée|J|', 'Diebold|Jacques|J|', 'Nathwani|Bharat N|BN|', 'MacLennan|Kenneth A|KA|', 'Müller-Hermelink|Hans K|HK|', 'Bast|Martin|M|', 'Boilesen|Eugene|E|', 'Armitage|James O|JO|', 'Weisenburger|Dennis D|DD|']
D000293:Adolescent D000328:Adult D000368:Aged D000369:Aged, 80 and over D000462:Algeria D001402:B-Lymphocytes D002648:Child D005060:Europe D005260:Female D006801:Humans D007694:Killer Cells, Natural D008224:Lymphoma, Follicular D016403:Lymphoma, Large B-Cell, Diffuse D020522:Lymphoma, Mantle-Cell D008228:Lymphoma, Non-Hodgkin D016399:Lymphoma, T-Cell D008297:Male D008875:Middle Aged D009656:North America D013601:T-Lymphocytes D014944:World Health Organization D055815:Young Adult
Non-Hodgkin lymphoma Algeria diffuse large B-cell lymphoma epidemiology