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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Cáncer medular de tiroides

Medullary thyroid cancer (MED-yoo-LAYR-ee THY-royd KAN-ser)
Cancer that develops in C cells of the thyroid. The C cells make a hormone (calcitonin) that helps maintain a healthy level of calcium in the blood.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.