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Types of radiation therapy for breast cancer
Source: Radiation for Breast Cancer, National Cancer Institute.
Source updated: Not stated in this source · Captured 2026-09-09.
Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary. Independent clinical review is pending.
NCI patient treatment article for this disease Exact source article; not a clinically reviewed indication or current-standard recommendation.
Context: Radiation for Breast Cancer
Types of radiation therapy for breast cancer
External beam radiation therapy and brachytherapy (internal radiation therapy) are the main types of radiation therapy used for breast cancer. External beam radiation therapy comes from a machine that aims radiation at the cancer. For internal radiation therapy, the radiation source is placed inside the body near the cancer.
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Preserved source evidence · Independent clinical review pending · Not medical advice