A 30-year-old member asked:
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How many weeks does radiation therapy last?

1 doctor answer
Dr. Barry Rosen
33 years experience in General Surgery
0-7 weeks.: The most common method for treating breast cancer is external beam rt ("outside-in") given over 7 weeks; this can be accelerated over 4 weeks in some settings. Brachytherapy is an option for some patients, where the rt is given from the "inside-out" over 5 days. A handful of centers are now offering intraoperative rt, popularized in europe, where the rt is given over minutes during lumpectomy.
Answered on Dec 9, 2013

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