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Breast carcinoma (3 separate tumors were present, all lobular carcinoma). a One of the 3 lobular tumors, low power. b ER+ stain; all 3 tumors were ER+. c Her2-stain; all 3 tumors were Her2-. d Perineural invasion by lobular carcinoma. e Lymph node metastasis by lobular carcinoma. f Lymph node metastasis by lobular carcinoma, pan-cytokeratin immunostain.
