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Kitson, Sarah J.; Bafligil, Cemsel; Ryan, Neil A.J.; Lalloo, Fiona; Woodward, Emma R.; Clayton, Richard D.; Edmondson, Richard J.; Bolton, James; Crosbie, Emma J.; Evans, D. Gareth
European journal of cancer (1990), September 2020, 2020-09-00, 20200901, Letnik: 136Journal Article
An association between BRCA pathogenic variants and an increased endometrial cancer risk, specifically serous-like endometrial cancer, has been postulated but remains unproven, particularly for BRCA2 carriers. Mechanistic evidence is lacking, and any link may be related to tamoxifen exposure or testing bias. Hysterectomy during risk-reducing bilateral salpingo-oophorectomy is, therefore, of uncertain benefit. Data from a large, prospective cohort will be informative. Data on UK BRCA pathogenic variant carriers were interrogated for endometrial cancer diagnoses. Standardised incidence ratios (SIRs) were calculated in four distinct cohorts using national endometrial cancer rates; either from 1/1/1980 or age 20, prospectively from date of personal pathogenic variant report, date of family pathogenic variant report or date of risk-reducing salpingo-oophorectomy. Somatic BRCA sequencing of 15 serous endometrial cancers was performed to detect pathogenic variants. Fourteen cases of endometrial cancer were identified in 2609 women (1350 BRCA1 and 1259 BRCA2), of which two were prospectively diagnosed. No significant increase in either overall or serous-like endometrial cancer risk was identified in any of the cohorts examined (SIR = 1.70, 95% confidence interval = 0.74–3.33; no cases of serous endometrial cancer diagnosed). Results were unaffected by the BRCA gene affected, previous breast cancer or tamoxifen use. No BRCA pathogenic variants were detected in any of the serous endometrial cancers tested. Women with a BRCA pathogenic variant do not appear to have a significant increased risk of all-type or serous-like endometrial cancer compared with the general population. These data provide some reassurance that hysterectomy is unlikely to be of significant benefit if performed solely as a preventive measure. •Endometrial cancer risk was not increased in BRCA1/2 pathogenic variant carriers.•Results were unaffected by BRCA gene, previous breast cancer or tamoxifen use.•No specific increase in serous-like endometrial cancer risk was identified.•Sequencing of 15 serous endometrial tumours revealed no pathogenic BRCA1/2 variants.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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