![](https://webarchive.library.unt.edu/eot2008/20081026045510im_/http://www.nci.nih.gov/images/spacer.gif) |
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(PAYR-uh-THY-royd KAN-ser)
![](https://webarchive.library.unt.edu/eot2008/20081026045510im_/http://www.nci.nih.gov/images/spacer.gif)
| A rare cancer that forms in tissues of one or more of the parathyroid glands (four pea-sized glands in the neck that make parathyroid hormone, which helps the body store and use calcium). |
Previous Definitions: | parasitic, parasomnia, parasympathetic nervous system, parathormone, parathyrin | Next Definitions: | parathyroid gland, parathyroid hormone, parathyroidectomy, parenchyma, parenteral nutrition |
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