title: A fifteen-year review of lymphomas in a Nigerian tertiary healthcare centre.
abstract: In Africa, epidemiological data on the effect of the HIV epidemic on the occurrence of lymphomas are scanty. The 1990s witnessed the alarming rates of HIV/AIDS in Nigeria. The prevalence of HIV/AIDS in Nigeria increased from 1.8% in 1991 to 4.4% in 2005. The aim of this study was to determine whether there have been any changes in the frequency and pattern of lymphomas in view of the HIV/AIDS epidemic in the country. This is a retrospective study of all lymphoma cases diagnosed during 1991-2005. The prevalence of lymphomas declined from 1.4% to 0.7% of surgical biopsies during 1991-2005. There was a decline in the proportion of high-grade non-Hodgkin lymphoma and Burkitt's lymphoma from 79.1% and 45.8% respectively to 21.1% and 13.6% respectively. There is a suggestion that the HIV/AIDS epidemic in the country may not have influenced the pattern of occurrence of both major histomorphological types of lymphoma in Ibadan.
authors.affiliation: Department of Pathology, College of Medicine, University of Ibadan, Ibadan, Nigeria.
authors.forename: A Olayiwola
authors.initials: AO
authors.lastname: Oluwasola
authors.forename: John A
authors.initials: JA
authors.lastname: Olaniyi
authors.forename: Jesse A
authors.initials: JA
authors.lastname: Otegbayo
authors.forename: Gabriel O
authors.initials: GO
authors.lastname: Ogun
authors.forename: Titi S
authors.initials: TS
authors.lastname: Akingbola
authors.forename: Cornelius O
authors.initials: CO
authors.lastname: Ukah
authors.forename: Effiong E U
authors.initials: EE
authors.lastname: Akang
authors.forename: Yetunde A
authors.initials: YA
authors.lastname: Aken'Ova
mesh_terms: D005260:Female; D019456:Health Transition; D006785:Hospitals, University; D006801:Humans; D008223:Lymphoma / Q000453:epidemiology*; D008297:Male; D009549:Nigeria / Q000453:epidemiology; D012189:Retrospective Studies