Proton therapy for breast tumors

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Proton therapy is an effective alternative to traditional radiation for some breast cancer patients. Proton therapy stops at the tumor, which minimizes the radiation dose to the nearby tissues.

With breast tumors, this means a significant radiation dose reduction to the heart, left anterior descending artery and lung. This is especially important in left-sided breast cancer, as the cancer is close to those critical organs.

Proton therapy is used to treat high-risk, post-mastectomy, left-sided breast tumors.