Whats it mean to be steroid hormone receptor-positive?

Breast cancer ?: In the context of breast cancer, it is a good thing. It means there are markers on teh cell surface for the estrogen or prgesterone receptors. This means you can be treated with specific medicine and potends a better overall prognosis.

ER/PR: The two steroid receptors checked on breast cancers are the estrogen (er) and Progesterone (pr) receptors. If present, the tumor is considered hormone sensitive/dependent/responsive and generally is less aggressive than receptor negative tumors. This also allows the use of hormonal therapy (tam, ais) as systemic therapy instead of or in addition to chemotherapy.