RT Book, Section A1 Bedrosian, Isabelle A2 Kuerer, Henry M. SR Print(0) ID 6414923 T1 Chapter 65. The Concept of Prophylactic Mastectomy T2 Kuerer's Breast Surgical Oncology YR 2010 FD 2010 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-160178-8 LK accesssurgery.mhmedical.com/content.aspx?aid=6414923 RD 2024/04/18 AB The discovery of the BRCA1 and BRCA2 mutation identifies a group of nearly homogeneous patients at substantially increased risk of breast cancer. The risk of breast cancer by age 70 in BRCA1 mutation carriers is estimated to range from 44% to 78% and for BRCA2 mutation carriers from 31% to 56%.1,2 Bilateral prophylactic mastectomy (BPM) is thus an important consideration for this population. Alternative approaches that have been investigated include frequent surveillance that includes the use of breast magnetic resonance imaging (MRI) and chemoprevention using tamoxifen.