FIGURE 6

Immunohistochemical stainings for DU-PAN-2 (a) and CA19–9 (b) in Hashimoto thyroiditis adjacent to the papillary carcinoma, DU-PAN-2 is weakly expressed on the luminal surface (∗) of the non-neoplastic follicular cells involved in the lymphoid follicle, but CA19–9 is not expressed.