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Dictionary of Cancer Terms

View in Spanish: Receptor de progesterona positivo

Progesterone receptor positive (proh-JES-teh-rone reh-SEP-ter PAH-zuh-tiv)
Describes cells that have a protein to which the hormone progesterone will bind. Cancer cells that are progesterone receptor positive need progesterone to grow and will usually stop growing when treated with hormones that block progesterone from binding. Also called PR+.



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