Although breast cancer is rare, even in men with an altered gene, men with an altered BRCA2 gene have higher rates of breast cancer than men without an altered gene. Men with an altered BRCA1 or BRCA2 gene may also have a slightly increased risk of prostate cancer. Even if a man never develops cancer, he can pass the altered gene to his sons and daughters.
You can learn more about the breast cancer gene, genetic testing, and options by going to the full eMedTV article Breast Cancer and Genetics.