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Histopathological and immunohistochemical features of gastric mucosa-associated lymphoid tissue lymphoma. A: Histopathological finding. Gastric MALT lymphoma shows many lymphoepithelial lesions formed by the invasion of glands by centrocyte-like cells [hematoxylin and eosin (HE) stain, × 400]; B: Immunohistochemical finding. Centrocyte-like cells show strong positive signals for CD20 (× 400).
