When you hear the words “breast cancer,” what’s your first impression (besides dread)? Do you picture your mother, sister, or girlfriend? Film footage of legions of pink-ribbon bedecked women striding through the streets of a major city, television coverage of one of the big breast cancer fund-raising walks? Do you ever see a man in this picture? No?

We often speak about the sisterhood of breast cancer. Well, move over ladies–men get breast cancer, too. Not nearly as often as women,...