A Case of Male Breast Cancer with BRCA2 Mutation after Seven Years 5α-reductase Inhibitor Use

Key Points

• To report a case of male breast cancer in a patient with a BRCA2 mutation after long-term use of 5α-reductase inhibitors.
• Documenting the patient's medical history
• Conducting a literature review on male breast cancer and BRCA2
• Analyzing the relationship between 5α-reductase inhibitors and cancer risk
• Establishment of a BRCA2 mutation in the patient
• Diagnosis of male breast cancer after long-term use of 5α-reductase inhibitors
• Literature review indicates potential risks of hormonal treatments leading to cancers in predisposed individuals