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Internal radiation therapy

Source: Cervical Cancer Treatment, National Cancer Institute.

Source updated: April 3, 2025 · Captured 2026-09-09.

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

Context: Radiation therapy

Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. Internal radiation therapy is also called brachytherapy.

Source links and citations

Learn more about Brachytherapy to Treat Cancer.

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Preserved source evidence · Independent clinical review pending · Not medical advice