Receptor status (ER, PgR and HER2) discordance between primary tumor and locoregional recurrence in breast cancer.

Abstract

We report on three cases in which the HER2 status of a locoregional recurrence differed from that in the primary breast cancer. In one of these cases, estrogen receptor (ER) status also changed from primary to locoregional recurrence. All patients received neoadjuvant chemotherapy. Changes in HER2 and ER status between primary and metastatic breast cancer… (More)
DOI: 10.1093/annonc/mdq688

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