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Washington University Experience | NEOPLASMS (METASTASES) | Microscopic | 81B1 Metastases (Case 81) breast HER-2 (20X)
Tumor cells are strongly HER-2 immunoreactive. ---- Not shown: The tumor stains for gross cystic disease fluid protein 15 and cytokeratin 7, and negative for cytokeratin 20. This profile is consistent with a known primary breast adenocarcinoma in this patient.
