Hormone Therapy

Indications for Hormone Therapy post treatment of DCIS:

  • High risk DCIS (high grade, comedo-necrosis)
  • MUST be ER/PR +
  • Patient had lumpectomy not Mastectomy
  • Not for Pleomorphic LCIS

Pre-menopausal women: Tamoxifen for 5 years
Post-menopausal women: Tamoxifen or an Aromatase Inhibitor for 5 years.

NOTE: Hormone treatment does NOT improve survival but it may decrease local recurrence in the treated breast as well as the other breast.

Hormonal Therapy for Breast Cancer: We Teach You

Learn more about hormonal therapy for breast cancer.

Adjuvant Hormonal Therapy for Estrogen Receptor Positive Early Stage Breast Cancer – Mayo Clinic

Learn about how Tamoxifen can be used to treat premenopausal or postmenopausal women with estrogen-receptor positive breast cancer, whereas aromatase inhibitors are only used to treat postmenopausal women with estrogen-receptor positive breast cancer. Also learn of the side effects of both.

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