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