Oncology is the study of cancer. The radiation oncologist is an expert regarding the treatment of cancer with all forms of radiation. As oncologists we are trained to suggest and implement the treatment that most benefits the patient. Our treatment strategy for a particular type of cancer is based on knowledge of the cancer biology and how the cancer spreads in the body. Our goal is not only to use the most appropriate forms of radiation to treat the cancer, but also to coordinate our treatment with the surgical oncologist and the medical oncologist so the total treatment approach is designed to ensure the best outcome and the least toxicity.