COVID-19 Updates: Please know that patient safety remains our top priority. Extra steps are being taken to keep you safe.
Please call 716.631.2500 to schedule an appointment.  Click here to learn more.


estrogen receptor negative (ES-truh-jin reh-SEP-ter NEH-guh-tiv)

Describes cells that do not have a protein to which the hormone estrogen will bind. Cancer
cells that are estrogen receptor negative do not need estrogen to grow, and usually do not stop
growing when treated with hormones that block estrogen from binding. Also called ER-.

Leave a Reply