Figure 2. Immunohistochemical findings of high RNA-binding motif protein 3 (RBM3) nuclear expression (RBM3>4). (A) Moderately expressed RBM3 in mucinous carcinoma. (B) Strongly expressed RBM3 in well differentiated invasive ductal carcinoma. (C) Strongly expressed RBM3 in classic invasive lobular carcinoma. (D) Moderately expressed RBM3 in metaplastic carcinoma (immunohistochemistry for RBM3, ×200).