A case of gastric mucosa-associated lymphoid tissue lymphoma in which magnified endoscopy with narrow band imaging was useful in the diagnosis

Figure 3 Histology of biopsy samples. A: Histopathologic findings revealed hyperplasia of atypical centrocyte-like cells with small to medium-sized, ovoid nuclei and clear cytoplasm in the lamina propria mucosae and their infiltration among glandular epithelial cells, suggesting a lymphoepithelial lesion (hematoxylin and eosin stain, × 600); B: Immunohistochemistry. The lesion was positive for CD20 (× 200).