Malignant mixed Mullerian tumour of uterus secondary to tamoxifen therapy for hormone responsive breast cancer

BMJ Case Rep. 2015 Jun 29:2015:bcr2015209981. doi: 10.1136/bcr-2015-209981.

Abstract

Tamoxifen is used in the treatment of hormone responsive breast cancer because of its antiestrogenic effect. However, it also has an estrogenic effect on the uterus, thereby increasing the risk of endometrial hyperplasia, endometrial polyp and endometrial neoplasms such as endometrial adenocarcinoma and malignant mixed Mullerian tumour (MMMT). This case describes the possible pathogenesis and risk of developing MMMT due to long-term tamoxifen intake in hormone responsive breast cancer.

Publication types

  • Case Reports

MeSH terms

  • Antineoplastic Agents, Hormonal / adverse effects*
  • Antineoplastic Agents, Hormonal / therapeutic use
  • Breast Neoplasms / drug therapy*
  • Female
  • Humans
  • Middle Aged
  • Mixed Tumor, Mullerian / chemically induced*
  • Selective Estrogen Receptor Modulators / adverse effects*
  • Selective Estrogen Receptor Modulators / therapeutic use
  • Tamoxifen / adverse effects*
  • Tamoxifen / therapeutic use
  • Uterine Neoplasms / chemically induced*
  • Uterus / pathology*

Substances

  • Antineoplastic Agents, Hormonal
  • Selective Estrogen Receptor Modulators
  • Tamoxifen