Cancer is a disease which needs cooperation of multiple departments in diagnosis and treatment or in other words, team work is necessary for cancer treatment. This team may consist of surgeons, medical oncologists, radiation oncologists, pathologists, radiologists and specialists from other relevant departments. Oncology is an Ancient Greek word which is a fusion of words oncos (lump, tumor) and logos (science). Medical Oncology is a discipline which primarily deals with medication treatment of cancer (chemotherapy). Moreover, the team involved in treatment of cancer is coordinated by the medical oncologists.