Abstract

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• Radiation induced malignancy (RIM) after treatment for prostate cancer is well documented after external beam irradiation, but less so in the setting of brachytherapy. We report a case of mucinous adenocarcinoma of the prostate, consistent with a RIM, which developed 12 years after low dose rate brachytherapy for low risk prostate adenocarcinoma. Diagnostic and therapeutic considerations of RIM are discussed. As long term survivors are followed in the community by primary care physicians and urologists, awareness of RIM as a potential late effect of brachytherapy is important to ensure that cases are diagnosed and managed appropriately.