1. A form of radiation therapy in which radioactive material is placed directly inside or very close to a tumor to deliver high doses of radiation to cancer cells.
Usage: medical; also called internal radiation therapy or internal radiotherapy

Examples

• Brachytherapy is often used to treat prostate cancer, cervical cancer, and breast cancer.
• The patient underwent brachytherapy as part of her comprehensive cancer treatment plan.
• Brachytherapy delivers radiation more precisely than external beam therapy because the source is placed directly at the tumor site.
• The oncologist recommended brachytherapy combined with chemotherapy for the best outcome.
• Brachytherapy requires careful planning to minimize damage to surrounding healthy tissue.
• Modern brachytherapy techniques use imaging to guide the placement of radioactive implants.