 The hypofractionated external radiation EBRT is a technique that radiation dose delivery using higher daily fractions than those used routinely. In this way can cause more damage tumor, especially in tissues that have a slower proliferation rate, as in the case of prostate cancer. Furthermore, achieves a reduction in total treatment time and probably a lesser chance of development of collateral in tissues of high multiplication rate as the lining of the rectum and bladder effects. 