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NCI Dictionary of Cancer Terms


parathyroid hormone  listen  (PAYR-uh-THY-royd HOR-mone)

  A substance made by the parathyroid gland that helps the body store and use calcium. A higher-than-normal amount of parathyroid hormone causes high levels of calcium in the blood and may be a sign of disease. Also called parathormone, parathyrin, and PTH.