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Nasopharyngeal radium irradiation, (NRI) was widely used from 1940 through 1970 to treat ear dysfunctions in children and military personnel. Use of NRI was stopped when concern arose about possible adverse effects, including cancer.
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Cancer that has developed in one place can spread and invade other parts of the body. This process of spreading is called metastasizing. If a tumor spreads to the bone, it is called bone metastasis.
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It doesn't look like much—a small, butterfly-shaped gland, just below your Adam's apple. But your thyroid gland has a big effect on the way your body works. The thyroid controls your body's energy level, and problems with your thyroid gland can interfere with your life. However, these problems can be treated. You and your doctor can discuss how best to handle your thyroid problem.
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