Características del cáncer de mama masculino en una población uruguaya

Breast cancer (BC) in men (MBC) is an uncommon clinical entity. Even though it shares some similarities with female BC, it has a distinctive profile. The objective of this study is to identify the characteristics of MBC and learn how it is managed in our setting. Materials and methods: retrospective study including patients diagnosed with MBC in three centers in Uruguay for a period of 15 years. Results: 12 patients were enrolled; the median age was 68 years; a third of whom had a family history (FH). Clinical and pathological characteristics: all of the tumors were ductal carcinomas of histological grade (HG) 2-3, 1/4 were stage (S) I, half (6) were SII, 6 had axillary metastases, 2/3 were estrogen receptor (ER) / progesterone receptor (PR) +. Three biological subtypes were defined: I) HER2- ER/PR+: 2/3 of patients; II) HER2+: 1/6; and III) triple-negative: 1/6. All patients with localized cancer underwent a mastectomy and most were treated with chemotherapy (CHT). All of those who presented with localized, ER/PR+ cancer received adjuvant hormone therapy, with good adherence and tolerance. Two of the eleven patients treated with radical surgery recurred during evolution; the rest remain in follow-up or treatment without evidence of recurrence. Conclusion: we presented a series of patients with MBC, with a profile similar to the one reported in the literature. Age at presentation was higher than that of female BC, and most were ER/PR +, HER 2-. However, patients in this series presented with breast cancer in the localized stage and high-grade tumors in a higher proportion than is described in the literature.