Hormone Receptor Status: Breast Cancer Pathology Report - Hormone dependant breast cancer
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Breast cancer cells taken out during a biopsy or surgery will be tested to see if they have certain proteins that are estrogen or progesterone receptors. Cancers are called hormone receptor-positive or hormone receptor-negative based on whether or not they have these receptors. About 80% of all breast cancers are “ER-positive.” That means the cancer cells grow in response to the hormone estrogen. About 65% of these.