{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T18:18:21Z","timestamp":1790878701015,"version":"4.1.0"},"reference-count":42,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2012,11,16]],"date-time":"2012-11-16T00:00:00Z","timestamp":1353024000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cancer"],"published-print":{"date-parts":[[2013,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>BACKGROUND:<\/jats:title><jats:p>The objective of this study was to assess the incidence of primary breast cancer (PBC) and contralateral breast cancer (CBC) in patients who had <jats:italic>BRCA1<\/jats:italic>\/<jats:italic>BRCA2<\/jats:italic>\u2010associated epithelial ovarian cancer (OC).<\/jats:p><\/jats:sec><jats:sec><jats:title>METHODS:<\/jats:title><jats:p>From the database of the Rotterdam Family Cancer Clinic, patients who had <jats:italic>BRCA<\/jats:italic>\u2010associated OC without a history of unilateral breast cancer (BC) (at risk of PBC; n = 79) or with a history of unilateral BC (at risk of CBC; n = 37) were selected. The control groups consisted of unaffected <jats:italic>BRCA<\/jats:italic> mutation carriers (n = 351) or mutation carriers who had a previous unilateral BC (n = 294), respectively. The risks of PBC and CBC were calculated using the Kaplan\u2010Meier survival method with death considered as a competing risk event.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS:<\/jats:title><jats:p>Women with <jats:italic>BRCA<\/jats:italic>\u2010associated OC had lower 2\u2010year, 5\u2010year, and 10\u2010year risks of PBC (3%, 6%, and 11%, respectively) compared with unaffected mutation carriers (6%, 16%, and 28%, respectively; <jats:italic>P<\/jats:italic> = .03), although they had a considerably higher mortality rate at similar time points (13%, 33%, and 61%, respectively, vs 1%, 2%, and 2%, respectively; <jats:italic>P<\/jats:italic> &lt; .001). In <jats:italic>BRCA<\/jats:italic> mutation carriers with a previous unilateral BC, the 2\u2010year, 5\u2010year, and 10\u2010year risks of CBC were nonsignificantly lower in patients with OC than in those without OC (0%, 7%, and 7%, respectively, vs 6%, 16%, and 34%, respectively; <jats:italic>P<\/jats:italic> = .06), whereas the mortality rate was higher in patients with OC (19%, 34%, and 55%, respectively, vs 4%, 11%, and 21%, respectively; <jats:italic>P<\/jats:italic> &lt; .001).<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS:<\/jats:title><jats:p>Patients with <jats:italic>BRCA<\/jats:italic>\u2010associated OC had a lower risk of developing a subsequent PBC or CBC than mutation carriers without OC, whereas the risk of dying from OC was greater than the risk of developing BC. These data may facilitate more tailored counseling for this patient subgroup, although confirmative studies are warranted. Cancer 2013. \u00a9 2012 American Cancer Society.<\/jats:p><\/jats:sec>","DOI":"10.1002\/cncr.27839","type":"journal-article","created":{"date-parts":[[2012,11,17]],"date-time":"2012-11-17T08:37:07Z","timestamp":1353141427000},"page":"955-962","source":"Crossref","is-referenced-by-count":36,"title":["The risk of primary and contralateral breast cancer after ovarian cancer in <i>BRCA1<\/i>\/<i>BRCA2<\/i> mutation carriers"],"prefix":"10.1002","volume":"119","author":[{"given":"Peggy M. L. 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