Fig. 2From: Breast cancer primary tumor ER expression pattern predicts its expression concordance in matched synchronous lymph node metastasesExamples of concordant immunohistochemical brown stainings of breast primary tumor and corresponding metastases. These samples were from the same patient, all the primary tumor cores (a, b, c, d and e) were ER-stained and scored 3+, corresponding metastatic sites (f, g, h, i and j) were all scored as 3+ ER expression as well. This case shows concordant 3+ ER expression among different tissue cores from the same primary lesion and every individual metastatic siteBack to article page