Breast Cancer : HER2-enriched
Molecular Subtypes of Breast Cancer - HER2-enriched: Microscopic photo showing a high grade invasive breast carcinoma. The tumor cells are negative for ER (estrogen receptor), and negative for PR (progesterone receptor). HER2/neu is overexpressed (see insert), and Ki-67 (proliferation rate) is high (see inset). Image courtesy of: Jian-Hua Qiao, MD, FCAP, Los Angeles, CA, USA.