Abstract
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Locally advanced colorectal cancer is typically treated with trimodality therapy. In the United States, preoperative chemoradiation followed by surgery and adjuvant chemotherapy remains the standard of care. Data regarding short-course versus long-course radiation therapy yield no significant differences in outcomes; however, there remain concerns regarding potential late toxicity. The role of intensity-modulated radiation therapy (IMRT) and proton therapy for the treatment of colorectal cancer remains unclear, with further investigation needed. Different technologies or techniques including SBRT or hyperfractionation may be options in the treatment for local recurrences, while IORT is a good option for those who are found to have unresectable disease or predicted to have positive margins at the time of surgery. Newer technologies may provide increased conformality of the target and decreased toxicity in the treatment of colorectal cancer, thus ultimately eliminating disease safely without adversely affecting quality of life.
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Kamran, S.C., Mamon, H.J., Wo, J.Y. (2017). Rectal and Colon Cancer: Radiation Therapy Planning. In: Hong, T., Das, P. (eds) Radiation Therapy for Gastrointestinal Cancers. Springer, Cham. https://doi.org/10.1007/978-3-319-43115-4_14
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DOI: https://doi.org/10.1007/978-3-319-43115-4_14
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