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  Indian J Med Microbiol
 

Figure 3: Immunohistochemistry (IHC) images showing (A) chromgranin-A (IHC 200x), (B) synaptophysin (IHC 200x), (C) CD56 (IHC 200x), and (D) Pan-cytokeratin positivity in the ampullary tumor.

Figure 3: Immunohistochemistry (IHC) images showing (A) chromgranin-A (IHC 200x), (B) synaptophysin (IHC 200x), (C) CD56 (IHC 200x), and (D) Pan-cytokeratin positivity in the ampullary tumor.