estrogen receptor test

Definition / meaning of estrogen receptor test

A lab test to find out if cancer cells have estrogen receptors (proteins to which estrogen will bind). If the cells have estrogen receptors, they may need estrogen to grow, and this may affect how the cancer is treated.

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Find More About 'estrogen receptor test'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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