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  Indian J Med Microbiol
 

Figure 2: (a) Histopathology image in a proven case of diffuse large B-cell lymphoma of the duodenum demonstrating cells with vesicular chromatin, prominent nucleoli, and moderate-to-abundant amount of cytoplasm (H and E, ×400) (b) Immunohistochemistry image in a proven case of diffuse large B-cell lymphoma of the duodenum demonstrating positivity for CD20 (×200). CD20 antibody staining protocol for immunohistochemistry was adopted. Chromogen substrate reagent used was DAB and counterstain used was Mayer's hematoxylin for membrane staining pattern

Figure 2: (a) Histopathology image in a proven case of diffuse large B-cell lymphoma of the duodenum demonstrating cells with vesicular chromatin, prominent nucleoli, and moderate-to-abundant amount of cytoplasm (H and E, ×400) (b) Immunohistochemistry image in a proven case of diffuse large B-cell lymphoma of the duodenum demonstrating positivity for CD20 (×200). CD20 antibody staining protocol for immunohistochemistry was adopted. Chromogen substrate reagent used was DAB and counterstain used was Mayer's hematoxylin for membrane staining pattern