Abstract Aim This study aimed to characterize a cohort of male patients with non-metastatic breast cancer, specifically focusing on tumor characteristics, treatment strategies, and determinants of overall survival. Methods Data for this study were obtained from the Baden-Württemberg Cancer Registry, encompassing male patients diagnosed with breast cancer between 2015 and 2023. A total of 470 patient records were included. We described patient and tumor characteristics using descriptive statistics. Overall survival was analyzed using Kaplan–Meier survival curves and Cox proportional hazards regression models to identify significant determinants. Results In our cohort of male patients with non-metastatic breast cancer, luminal subtype was the predominant tumor biology, accounting for 90% of cases. HER2-positive tumors were observed in 9% of patients, while triple-negative tumors were rare, with only four cases identified. Regarding tumor staging, 81.7% of patients were diagnosed at T1 or T2 stages. However, a substantial proportion (48.7%) presented with clinically involved lymph nodes, and 27.1% were diagnosed at UICC stage III. The five-year overall survival rate for the cohort was 73.7%. Treatment analysis revealed that 86% of patients underwent surgical intervention. Mastectomy combined with sentinel lymph node dissection was the most frequent surgical procedure, performed in 50.6% of cases. Adjuvant radiotherapy was administered to 72.8% of patients. Cox regression analysis identified age, nodal status, and surgical intervention as significant determinants of overall survival.
Jakob et al. (Mon,) studied this question.