Author: xnewsline

Breast Cancer Subtypes: HR-positive, HER2-positive, and Triple-Negative—Biology, Prognosis, and Treatment Implications

Breast cancer is not a single disease but a biologically heterogeneous group of malignancies arising from breast epithelium. Clinical practice increasingly relies on molecularly guided classification, particularly three major immunohistochemical or receptor-defined subtypes: hormone receptor–positive (HR+, typically estrogen receptor [ER] and/or progesterone…Read More »