Definition of estrogen receptor test - NCI Dictionary of Cancer Terms

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estrogen receptor test (ES-truh-jin reh-SEP-ter 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.

Previous Definitions:	estramustine, estrogen, estrogen receptor, estrogen receptor negative, estrogen receptor positive
Next Definitions:	estrogen replacement therapy, ET-743, etanercept, etanidazole, ethical will