The term oncology literally means a branch of science that deals with tumours and cancers. The word “onco” means bulk, mass, or tumor while “-logy” means study.
What is cancer?
Each of the cells of the body have a tightly regulated system that controls their growth, maturity, reproduction and eventual death. Cancer begins when cells in a part of the body start to grow out of control. There are many kinds of cancer, but they all start because of out-of-control growth of abnormal cells.
Based on the grade and stage of the cancer, oncologists help plan the therapy that is suitable for each of their patients. This could be by surgery, chemotherapy, radiation therapy and other modalities.
Treatment of cancer may involve other specialists as well. This includes a surgeon, a radiation oncologists or a radiotherapist etc. the whole of the cancer therapy however is co-ordinated by the oncologists.