Oncology uses radiation to kill cancer cells in a small, targeted area. It may be prescribed to shrink a tumor, making it easier to remove surgically, or it may be recommended post-surgery to destroy any cancer cells that were not successfully removed and improve the chances that the cancer will not return.
Cancer refers to a group of diseases caused by the growth of abnormal cells. If not treated, it can spread to different areas of the body. Different types of cancer may spread slowly or quickly and its symptoms vary according to the location of the organ that is affected. Advanced stage cancer may lead to other problems.