Progesterone receptor negative

Describes cells that do not have a protein that binds to the hormone progesterone. Cancer cells that are progesterone receptor negative do not need progesterone to grow. This means that they will keep growing when progesterone is not present and do not stop growing when treated with substances that block progesterone from binding. Also called PR negative.

Explore Medical Terms

20000+ Medical & Health Terms for Doctors, students & patients from a medical dictionary. Our experts define difficult medical & health language in easy-to-understand explanations of each and every medical term.

Medical & Health Terms online medical dictionary provides quick & easy access to hard-to-spell and often misspelled medical & health definitions through an extensive alphabetical A-Z listing.