Collagenous Gastritis in Primary Selective IgM Deficiency: Transition to EBV+ Gastric Adenocarcinoma

<div>(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).</div>

Case Reports in Immunology

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Figure 2: Collagenous Gastritis in Primary Selective IgM Deficiency: Transition to EBV+ Gastric Adenocarcinoma 