title: Breast cancer and long-term hormonal treatment of male hypogonadism.
abstract: Breast cancer in men is rare and its etiology is multifactorial. Androgens may promote the development of breast carcinoma in men though data on the subject is scarce. We observed 45 men with hypergonadotropic hypogonadism (aged 18-57) who received 250 mg of testosterone esters (Omnadren 250, Jelfa, Poland) every 3-4 weeks for 5-26 years. Seventeen of them were treated for more than 10 years. During the observation period breast cancer was diagnosed in 2 subjects (11% of the followed men). In one case it occurred after 11 years and in the other after 15 years of the therapy. We point to a possible association between long-term androgen replacement and a risk of breast cancer in men.
authors.affiliation: Department of Endocrinology, Diabetology and Nuclear Therapy, Wroclaw Medical University, Wroclaw, Poland.
authors.forename: Marek
authors.initials: M
authors.lastname: Medras
authors.forename: Alicja
authors.initials: A
authors.lastname: Filus
authors.forename: Paweł
authors.initials: P
authors.lastname: Jozkow
authors.forename: Pawel
authors.initials: P
authors.lastname: Jozkow
authors.forename: Jacek
authors.initials: J
authors.lastname: Winowski
authors.forename: Teresa
authors.initials: T
authors.lastname: Sicinska-Werner
authors.forename: Teresa
authors.initials: T
authors.lastname: Sicinska Werner
mesh_terms: D000293:Adolescent; D000328:Adult; D018567:Breast Neoplasms, Male / Q000139:chemically induced*; D006801:Humans; D007006:Hypogonadism / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D013739:Testosterone / Q000009:adverse effects*
chemical_list: D013739:Testosterone