Ben Stiller, one of Hollywood’s leading comedians, had a scary brush with aggressive prostate cancer two years ago and talked about it today on Howard Stern. He revealed he secretly had surgery to have the gland removed. He’s now cancer free, he says. Stiller’s treatment option is one of the most extreme. Different types of treatment are available for the disease, depending on the age of the individual and the aggressiveness of the cancer, according to medical references.