Hormone Receptor-Positive Breast Cancer. If your breast cancer has a significant number of receptors for either estrogen or progesterone, it’s considered hormone-receptor positive. Tumors that are ER/PR-positive are much more likely to respond to hormone therapy than tumors that.
Compared to women diagnosed with estrogen receptor positive (ER+) breast cancer, those with estrogen receptor negative (ER−) tumors are.
Estrogen receptor (ER)-negative breast cancers are a group of tumors with poor prognosis and fewer cancer prevention and treatment strategies compared to.
This kind of treatment is helpful for hormone receptor-positive breast cancers, but it doesn't work on tumors that are hormone receptor-negative (both ER- and.
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.