Incidence and Mortality
Estimated new cases and deaths from breast cancer (men only) in the United States in 2014:
New cases: 2,360.
Male breast cancer is rare. Less than 1% of all breastcarcinomas occur in men.[3,4] The mean age at diagnosis is between 60 and 70 years, though men of all ages can be affected with the disease.
Predisposing risk factors  appear to include radiation exposure, estrogen administration, and diseases associated...