Cancer of unknown primary (CUP) is cancer that starts in an unknown area and has already spread by the time it's diagnosed.

Sarcoma is a type of cancer that starts in the body's connective tissues. Learn the basics of soft tissue sarcoma.

Digital mammograms are as effective as traditional X-ray mammograms. Learn what it is, why it's used, what the different types are, and what the benefits are.

Early detection involves screening for health problems before you have symptoms. It's not clear if the benefits of screening for prostate cancer are greater than the possible harms. Learn the benefits and risks of prostate cancer screening and what experts recommend.

Immunotherapy is a treatment that uses medicines that work with your body's immune system to attack and kill cancer cells. Learn about the two types of immunotherapy for prostate cancer.

If you are believed to be at risk for a hereditary cancer syndrome, genetic testing can be helpful. It can be used to look for the gene changes linked to these syndromes.

You can find prescription medicines online, but be an aware consumer. Here's what to watch out for if you are interested in purchasing medicines online.

Radiation therapy, also called radiotherapy, is a way to treat colorectal cancer. The goal of radiation therapy is to kill cancer cells by directing strong X-rays at the site of the tumor.

The stage of a cancer is how much and how far the cancer has spread in your body. Your doctor uses it to decide how to treat the cancer.

Your doctor might believe you have colorectal cancer based on the results of a routine screening test. Or you might have symptoms that could be caused by colorectal cancer. You will need certain exams and tests to be sure.