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. 2012 May 14;18(18):2287–2290. doi: 10.3748/wjg.v18.i18.2287

Figure 2.

Figure 2

Histopathologic images demonstrating the findings from the patient’s ampullary biopsy. A: A hematoxylin eosin stained biopsy at 20 x magnification revealed chronic active inflammation; B: An IgG4 stain revealed approximately 20-25 IgG4-containing plasma cells/high power field, consistent with autoimmune pancreatitis.