Male breast cancer retrospective institution review of a 17-year period
e11638 Background: Male breast cancer (MBC) is a very uncommon illness relative to female breast cancer (FBC) The are some differences between both that could influence the management, like gene expression, hormonal enviroment and anatomy of the gland. Methods: Retrospective review of patients diagnosed in a seventeen year period (1990–2007). Results: There were 22 male patients diagnosed in our institution with a median age of 62.4 years (range 34 to 83 years) during the period. One had bilateral breast cancer. Stage of disease was I-II in 13 patients (59%), III in 8 patients (36%), and IV in 1 patient (5%). Five patients (22.7%) had familiar history of breast cancer and 3 patients (13%) had familiar history of other kind of neoplasias. Hormonal receptor were positive in thirteen patiens (59%) and 5 were unknown (23%). Ductal carcinoma was the predominant histologic subtype with 17 patients (77%). Other types were pleomorfic, mucoid and papilar carcinoma (one each type) and 3 patients with intrapapilar carcinoma with microinfiltration. Eleven of 20 patologic available axilla had node positive (55%). Grade were I in 3 patients (13%), II in 4 patients (18%), III in 8 (37%) and undefined in in 7 (32%). Surgery was the initial treatment in 18 patients (81%), just 2 of them performing tumorectomy and the other 16 radical mastectomy. 3 patients receive neoadyuvant chemotherapy with 1 complete response and one partial response. 13 patients (59%) received adjuvant radiotherapy (RT) and 17 (77%) adjuvant hormonal therapy (HT) mostly of them with tamoxifen (14/17) and the others 3 patients with aromatase inhibitors. Adjuvant chemotherapy was used in 9 (41%) patients with an antracycline regimen. With a median follow-up of 78 months (range 7–125), overall survival was 77 % with 3 patients died with progression disease and two patients died because of intercurrent illness without evidence of cancer progression. Regarding to our population area we had an incidence of 0.96/100.000 inhabitants during this 17 year period. Conclusions: MBC in our area are in the upper limit of occidental countries incidence. Most cases can be treated with radical intention with surgery (mostly radical) and adjuvant treatment with a good survival percentage. We manage MBC like we do FBC because of absence of clinical randomized trial specific for MBC. No significant financial relationships to disclose.