Breast cancer is the most common form of cancer in women, and the most fatal after lung cancer. The number of cases has significantly increased since the 1970s. Although it is far less common in men, breast cancer can also affect them.<ref> http://www.cancer.gov/cancertopics/pdq/treatment/malebreast/healthprofessional</ref> | Breast cancer is the most common form of cancer in women, and the most fatal after lung cancer. The number of cases has significantly increased since the 1970s. Although it is far less common in men, breast cancer can also affect them.<ref> http://www.cancer.gov/cancertopics/pdq/treatment/malebreast/healthprofessional</ref> |