Brachytherapy (say "bray-kee-THAIR-uh-pee"), in which tiny pellets of radioactive material are injected into or near the cancer.
Brachytherapy, in which tiny seeds containing radioactive material are injected directly into or near the cancer and left there.
Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer.