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Histological and immunohistochemical staining of representative cases of chronic gastritis with lymphoid aggregates and MALT lymphoma with lymphoepithelial lesions (LEL) or lymphoepithelial destruction (LED); H&E staining, B220 labeling B-cells and anti-cytokeratine staining labeling the epithelium. Centrocyte-like cells infiltrate the gastric epithelium (arrows). Scale bars show 20 μm. Original magnification x40.
