Is it better to have ER positive or negative breast cancer? The survival rate for breast cancers are excellent if the cancer is detected early, and in general HR positive cancers grow slower and have a better prognosis. Overall, breast cancers that are both HR positive and HER2 negative have the best outcomes.
Is chemo necessary for ER positive? Most instances of ER-positive, HER2-negative, node-negative breast cancer <1 cm, and all cancers ≤0.5 cm, have a sufficiently good prognosis with endocrine therapy alone, that they do not typically require adjuvant chemotherapy.
Does ER positive breast cancer come back? Studies have shown that estrogen-receptor-positive breast cancer has a more drawn-out risk of recurrence compared to estrogen-receptor-negative disease. About 50% of estrogen-receptor-positive breast cancer recurrences happen 5 or more years after the initial diagnosis.
What is the meaning of ER positive? PAH-zih-tiv) Describes cells that have a protein that binds to the hormone estrogen. Cancer cells that are ER positive may need estrogen to grow. These cells may stop growing or die when treated with substances that block the binding and actions of estrogen. Also called estrogen receptor positive.