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What is balloon brachytherapy?

The common form of breast brachytherapy consists of implanting a small, balloon-like catheter device into the lumpectomy cavity several days after surgery. A radiation seed is placed inside the balloon through a catheter by a computer-controlled machine twice a day forĀ five days of treatment. Because the balloon is placed inside the lumpectomy cavity, radiation is targeted to the "ring" of breast tissues surrounding the lumpectomy cavity.


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