title: High-grade intra-epithelial neoplasia and prostate cancer in Dibombari, Cameroon.
abstract: High-grade prostatic intra-epithelial neoplasia (HGPIN) occurs a decade earlier in men of African descent in the US and Brazil, compared to white men. Prostate cancer incidence and mortality is worse in the African-American than in US white men. Sub-Saharan Africa was thought to be a low incidence area. This disparity has been attributed to lifestyle factors such as diet. We report the results of prostatic biopsies, from an ongoing national prostate cancer survey. One hundred and eleven men aged 40 y and over were recruited for medical interview (AUA symptom score), prostate specific antigen (PSA) assay and digital rectal examination (DRE). Between six and 10 cores of random digitally guided needle biopsies were performed on 24 subjects that had either suspicious prostates on digital rectal examination +/ or PSA > or =4 ng/ml. All lesions of the prostate were described on routine histopathology. The Gleason score and proportion of tissue involved with cancer, was determined. Eight men had benign prostatic hyperplasia (BPH), six had cancer, another six had low grade intra-epithelial neoplasia, two had HGPIN, there was one case of BPH and chronic prostatitis and one case of chronic prostatitis only. The cancer patients were aged 58-75 y (mean 66.93 y). Gleason scores ranged from 5 to 9, there was one score of 3. Cancer made up 20-80% tissue samples. HGPIN was found in two cases (mean age 58 y). Significant prostate cancer and the pre-cancerous lesion HGPIN exist in Dibombari, Cameroon. The purported low incidence of prostate cancer may reflect cultural and economic barriers to health care.
authors.affiliation: The National Health Survey Team For Chronic Diseases, National Epidemiology Board, Ministry of Public Health, Yaounde, Cameroon. fobuzshi@yahoo.com
authors.forename: F F
authors.initials: FF
authors.lastname: Angwafo
authors.forename: A
authors.initials: A
authors.lastname: Zaher
authors.forename: R
authors.initials: R
authors.lastname: Befidi-Mengue
authors.forename: A
authors.initials: A
authors.lastname: Wonkam
authors.forename: I
authors.initials: I
authors.lastname: Takougang
authors.forename: I
authors.initials: I
authors.lastname: Powell
authors.forename: G
authors.initials: G
authors.lastname: Murphy
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy; D002163:Cameroon; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D017430:Prostate-Specific Antigen / Q000097:blood; D019048:Prostatic Intraepithelial Neoplasia / Q000175:diagnosis / Q000453:epidemiology* / Q000473:pathology; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000453:epidemiology* / Q000473:pathology; D011795:Surveys and Questionnaires
chemical_list: D017430:Prostate-Specific Antigen