title: Breast cancer in the setting of fertility-sparing treatment for endometrial cancer.
abstract: •Progesterone therapy is a commonly used alternative to surgical management for women with endometrial cancer who desire fertility preservation.•Prior research suggests that progestins may contribute to breast tumorigenesis.•We report a patient diagnosed with progesterone receptor positive breast cancer during hormonal treatment of endometrial cancer.
authors.affiliation: New York University Langone Medical Center, United States.
authors.forename: Haley A
authors.initials: HA
authors.lastname: Moss
authors.affiliation: New York University Langone Medical Center, United States.
authors.forename: Melissa K
authors.initials: MK
authors.lastname: Frey
authors.affiliation: New York University Langone Medical Center, United States.
authors.forename: Stephanie V
authors.initials: SV
authors.lastname: Blank
keywords: Breast cancer; Endometrial cancer; Fertility-sparing; Hormonal therapy