Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer and oncologist is a doctor who does that. The field of oncology has 3 major areas based on treatment methodology: medical oncology, radiation oncology, and surgical oncology.
Once a diagnosis is made with blood tests, scans and biopsies the oncologists will determine the stage of the disease. Depending on the stage of the disease treatment options will be provided. Staging will dictate treatment of the cancer.
Chemotherapy is defined as a drug treatment for the destruction of cancer cells. Radiation is another form of cancer treatment that uses high doses of radiation to kill and shrink cancer cells. Surgery is the main stay in cancer treatment. At times a combination of all these therapies will have to be used in different combinations. Hormone therapy is used to treat certain types of cancers, and monoclonal antibody treatments are gaining popularity.