Numerous high-risk epithelial lesions in familial breast cancer.
until further notice
SourceEuropean Journal of Cancer, 42, 15, (2006), pp. 2492-2498
Article / Letter to editor
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Epidemiology, Biostatistics & HTA
European Journal of Cancer
SubjectEBP 1: Determinants in Health and Disease; IGMD 3: Genomic disorders and inherited multi-system disorders; NCEBP 1: Molecular epidemiology; NCMLS 3: Growth and differentiation; NCMLS 6: Genetics and epigenetic pathways of disease; ONCOL 1: Hereditary cancer and cancer-related syndromes; ONCOL 3: Translational research; ONCOL 5: Aetiology, screening and detection; UMCN 1.1: Functional Imaging; UMCN 1.2: Molecular diagnosis, prognosis and monitoring; UMCN 1.4: Immunotherapy, gene therapy and transplantation; UMCN 1.5: Interventional oncology; NCMLS 3: Growth and differentiation
PURPOSE: To assess the occurrence of high-risk epithelial lesions in women of breast cancer families with and without a BRCA mutation. PATIENTS AND METHODS: Prospective study of women at very high risk of breast cancer undergoing prophylactic mastectomy (68 BRCA1 mutation carriers, 14 BRCA2 mutation carriers and 24 non-BRCA mutation carriers). RESULTS: The prevalence of high-risk lesions is equal in women with a BRCA1 or a BRCA2 mutation, but is higher in non-BRCA mutation carriers: all lesions 43% versus 71% (p=0.02), atypical lobular hyperplasia 26% versus 67% (p=0.001), atypical ductal hyperplasia 17% versus 42% (p=0.01), lobular carcinoma-in situ 15% versus 29% (p=0.10) and ductal carcinoma-in situ 9% versus 17% (p=0.25). The presence of high-risk lesions is related to absence of a BRCA mutation and to age over 40 years. CONCLUSION: Women with an autosomal dominant family history for breast cancer, with and without a BRCA mutation are prone to develop high-risk epithelial lesions, especially over 40 years.
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