NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,547 terms related to cancer and medicine.
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- estrogen receptor negative
- listen (ES-truh-jin reh-SEP-ter NEH-guh-tiv)
- Describes cells that do not have a protein to which the hormone estrogen will bind. Cancer cells that are estrogen receptor negative do not need estrogen to grow, and usually do not stop growing when treated with hormones that block estrogen from binding. Also called ER negative.