94B1 Metastases, Breast (Case 94) ER 1 | Microscopic | NEOPLASMS (METASTASES)

Washington University Experience | NEOPLASMS (METASTASES) | Microscopic | 94B1 Metastases, Breast (Case 94) ER 1

94B1,2 Most malignant cells in this case are immunoreactive for estrogen receptor (ER, 94A1) and HER-2 (94A2) shows strong membrane staining.