The Food & Drug Administration (FDA) plays a difficult role in drug approval, and no matter what the agency decides, someone is upset. The recent decision on expanding Xgeva's treatment in prostate cancer illustrates that once again.

T cells are the beat cops of the immune system, and they constantly patrol around the body looking for critters. T cells recognizing and destroying weird cells is also one of the most effective defenses of the body against cancer.

Treating childhood cancers usually requires medications, some of which can be toxic to the heart. So will these drugs cause heart problems later on in life?  Recent research asked just that question.

A common story in cancer treatment is of specialized drugs that work great initially, but over time the cancer becomes resistant to the drug. Finding out why this happens has become paramount for scientists.

About 20 percent of all leukemias in the Western world are chronic myeloid leukemia ( CML ). Today's treatments target an abnormal chromosome that causes the disease, but new theories about how to outwit this resilient disease are sprouting.

Heart health can be improved with lifestyle changes - weight loss, exercise and a healthy diet. It may be that these changes also reduce a man's risk of prostate cancer.

Women who are at high risk of developing breast cancer are sometimes prescribed medications that block estrogen, the hormone that drives the most breast malignancies. One such drug is Aromasin ( exemestane ), which new studies show lowers more than cancer risks.

Dietary guidelines are constantly changing. And doctors rarely discuss eating plans with their patients being treated for cancer. A new study shows that eating nothing at all from time to time could be extremely beneficial.

Ovarian cancer can live within a woman's body for some time before showing itself. And sometimes its presence is never really felt. That's why diagnosing the disease is so tricky. Now, researchers have zeroed in on a way to detect ovarian cancer that has returned.

The risk of developing breast cancer increases as a woman ages. The risk of breast cancer returning also increases with age. And increasing age also increases the risk of dying from breast cancer.