Symposium on carcinoma of colon and rectum: 3. Radiation therapy in rectal cancer.


In a number of studies preoperative irradiation of cancer of the rectum has procured 5-year survival rates higher than those obtained with conventional surgical techniques, whether or not the tumour has spread to lymph nodes. There appears, as well, to be a lower rate of local recurrence and possibly of the development of distant metastases. Also, some… (More)


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