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  Indian J Med Microbiol
 

Figure 1: (a) Mixed adenoneuroendocrine tumor showing cohesive goblet cells and a glandular component of adenocarcinoma (H and E, ×200). (b) Synaptophysin positive staining in goblet cells and negative staining in glandular adenocarcinoma component (immunohistochemistry, ×400). (c) Cytokeratin positivity seen in glandular, as well as goblet cell component of the tumor (IHC, ×400). (d) Carcinoembryonic antigen in exocrine part of the tumor (immunohistochemistry, ×400). (e) Carcinoembryonic antigen in the endocrine part of the tumor (immunohistochemistry, ×400). (f) Epithelial membrane antigen in exocrine part of tumor (immunohistochemistry, ×400)

Figure 1: (a) Mixed adenoneuroendocrine tumor showing cohesive goblet cells and a glandular component of adenocarcinoma (H and E, ×200). (b) Synaptophysin positive staining in goblet cells and negative staining in glandular adenocarcinoma component (immunohistochemistry, ×400). (c) Cytokeratin positivity seen in glandular, as well as goblet cell component of the tumor (IHC, ×400). (d) Carcinoembryonic antigen in exocrine part of the tumor (immunohistochemistry, ×400). (e) Carcinoembryonic antigen in the endocrine part of the tumor (immunohistochemistry, ×400). (f) Epithelial membrane antigen in exocrine part of tumor (immunohistochemistry, ×400)