| Health / Medical Topics |
Estrogen Receptor Status
The estrogen receptor level measured in a primary tumor or in metastases. There are essentially two distinct forms of breast cancer, one that tends to have an early onset and is characterized by an ER- status, and one that tends to have a late onset and is characterized by an ER+ status. However, these two variants tend to overlap with respect to age, so it is possible for a young woman to have a "late-onset" form of breast cancer and for an older woman to have an "early-onset" variant of the disease. (NCI Thesaurus)
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Describes cells that have a receptor protein that binds the hormone estrogen. Cancer cells that are estrogen receptor positive may need estrogen…
Describes cells that do not have a protein to which the hormone estrogen will bind. Cancer cells that are estrogen receptor negative…
The determination of the amount of estrogen receptor present in a sample.
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