Incidence and outcomes of contralateral breast cancers

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59 Scopus citations

Abstract

Background: The significance of a contralateral breast cancer is largely unknown, making prophylactic mastectomy controversial. Methods: Differences between stages of initial and contralateral cancers were determined by t test. Survival distributions were compared by log-rank analyses and compared with Surveillance Epidemiology and End Results data for unilateral cancers. Results: Metachronous contralateral cancers occurred at a rate of .13% per year and were of significantly lower stage. Metachronous cancers adversely impacted survival for patients with low-stage initial cancers, but the interval between cancers was less than 36 months. Synchronous tumors occurred in 2.3% of patients; survival was worse than for patients with metachronous cancers. Conclusions: Prophylactic mastectomy is unlikely to be beneficial because of the lower stages and low incidence of second cancers, even for patients with initial low-stage cancers.

Original languageEnglish (US)
Pages (from-to)645-650
Number of pages6
JournalAmerican journal of surgery
Volume195
Issue number5
DOIs
StatePublished - May 2008

Keywords

  • Breast cancer
  • Contralateral
  • Metachronous
  • Synchronous

ASJC Scopus subject areas

  • Surgery

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