Cancer and Treatment Modalities

Background: Cancer is one of the most dreadful diseases all over the world that can cause death. Cancer could be treated with different methods such as surgery, chemotherapy or radiotherapy. Methodology: In this review study, various techniques in cancer treatment especially radiotherapy modalities including three dimensional radiation therapy, intensity modulated radiation therapy, image guided radiation therapy, intra operative radiotherapy, stereotactic methods and brachytherapy are reviewed and discussed. Conclusion: Over recent years, radiotherapy techniques have been greatly developed which create various suitable conditions for the treatment of different cancers while sparing normal tissues. As the radiotherapy techniques developed, tumor covering and precision on dose delivery increased.