Abstract:577 Background: HER-2 low has emerged as a potential new entity in breast cancer (BC). Data of this subset is still limited and prognostic results are controversial, suggesting HER2-low does not represent a distinct biological subtype. HER2-low account for up to 50% of BC, representing a potential therapeutic target with encouraging results in the metastatic setting. Hence, we pretend to analyze clinical characteristics of this subset to elucidate commented points. Methods: Confirmed HER2-negative BC patients… Show more
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