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The most common form, where a large machine called a linear accelerator aims beams at a precise point on the body from the outside.
The primary goal of radiation is to maximize damage to tumors while sparing as much surrounding healthy tissue as possible. Unlike chemotherapy, which is systemic, radiation is a .
Involves placing a radioactive source (implant) directly inside or near the tumor.
Using radioactive substances, like radioactive iodine, which travel through the blood to kill cancer cells. Clinical Applications
Radiation can serve different purposes depending on the stage and type of cancer:
Used as the primary treatment to completely eliminate a tumor.