Figure 6.

Histopathological examination of the pancreatic tumor.A) The tumor appears encapsulated and composed of polygonal cells with trabecular or ribbon-like proliferation (HE 5 X). B) At immunohistochemistry, neoplastic cells showed an intense diffuse staining for glucagon (Anti-glucagon antibody 5 X).

Erdas et al. BMC Cancer 2012 12:614   doi:10.1186/1471-2407-12-614
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