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Mastectomy if no personal history of breast cancer

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Risk-reducing mastectomy for women with no personal history of breast cancer

  • bilateral risk-reducing mastectomy is appropriate only for a small proportion of women who are from high-risk families and should be managed by a multidisciplinary team
    • bilateral mastectomy should be raised as a risk-reducing strategy option with all women at high risk
    • women considering bilateral risk-reducing mastectomy should have genetic counselling in a specialist cancer genetic clinic before a decision is made
    • discuss the risks and benefits of risk reducing mastectomy with women with a known or suspected BRCA1, BRCA2, or TP53 mutation
      • offer women who have BRCA1, BRCA2 or TP53 mutations but who decide against risk-reducing mastectomy, surveillance according to their level of risk
    • pre-operative counselling about psychosocial and sexual consequences of bilateral risk-reducing mastectomy should be undertaken
    • the possibility of breast cancer being diagnosed histologically following a riskreducing mastectomy should be discussed pre-operatively
    • all women considering bilateral risk-reducing mastectomy should be able to discuss their breast reconstruction options (immediate and delayed) with a member of a surgical team with specialist oncoplastic or breast reconstructive skills
    • a surgical team with specialist oncoplastic/breast reconstructive skills should carry out risk-reducing mastectomy and/or reconstruction
    • women considering bilateral risk-reducing mastectomy should be offered access to support groups and/or women who have undergone the procedure

Breast cancer risk category

Near population risk

Moderate risk

High Risk *

Lifetime risk from age 20

Less than 17%

Greater than 17% but less than 30%

30% or greater

Risk between ages 40 and 50

Less than 3%

3-8%

Greater than 8%

*This group includes known BRCA1, BRCA2 and TP53 mutations and rare conditions that carry an increased risk of breast cancer such as Peutz-Jegher syndrome (STK11), Cowden (PTEN) and familial diffuse gastric cancer (E-Cadherin)

Reference:

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