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HEALTH PROFESSIONAL · SOURCE READING

Radiation Therapy for Breast Cancer

Source: Breast Cancer Treatment (PDQ®)–Health Professional Version, National Cancer Institute.

Source updated: April 25, 2025 · Captured 2026-09-09.

Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary.

Radiation therapy is standard after breast-conserving surgery as part of breast-conserving therapy. Radiation therapy is also considered for high-risk postmastectomy patients. The main goal of adjuvant radiation therapy is to eradicate residual disease, reducing local recurrence and increasing breast cancer–specific survival.[1]

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Post–Breast-Conserving Surgery →Timing of Postoperative Radiation Therapy →Acute and Late Toxicities of Radiation Therapy →

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