ER- [also called estrogen receptor negative]

Last modified on September 17, 2012 at 7:05 pm

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(ee-are NEG-uh-tiv)

Breast cancer cells without estrogen receptors. Estrogen receptors are special proteins that the hormone estrogen binds to. ER negative breast cancer cells do not depend on estrogen to grow. Anti-estrogen hormonal therapy has no role against this type of cancer.

Read more about hormone receptor status.

Weiss_marisa_tcm8-329674

Audio contributed by: Marisa Weiss, M.D.

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