case_images: PMC8172285_01
case_images: (a) 4x magnification of the results of upper endoscopy biopsy showing nonspecific chronic inflammatory infiltrate with a thickened subepithelial collagen table. (b) 20x magnification higher-power image of the thickened subepithelial collagen table, showing diagnostic features of entrapped cellular elements such as inflammatory cells and blood vessels.
case_images: CRII2021-5574944.001.jpg
case_images: PMC8172285_01_CRII2021-5574944.001.jpg
case_images: fig1
case_images: An endoscopy was performed, and biopsies showed collagenous gastritis (Figure 1).
case_images: (a) 10x magnification of histopathology of the polypoid gastric body lesion showing poorly differentiated adenocarcinoma with surface ulceration. (b) High-power magnification of the gastric polypoid lesion showing high-grade dysplasia. (c) EBV-infected carcinoma cells (black stain present) juxtaposed with normal gastric glandular mucosa (black stain absent), using EBV-related encoded RNA in situ hybridization assay (EBER ish).
case_images: CRII2021-5574944.002.jpg
case_images: PMC8172285_01_CRII2021-5574944.002.jpg
case_images: fig2
case_images: Eight years later (2020), his screening endoscopy showed a new polyp that, on biopsy, revealed poorly differentiated gastric adenocarcinoma that was positive for EBV (Figure 2).