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  Indian J Med Microbiol
 

Figure 4: Photomicrographs showing fragments of duodenal mucosa with infiltration of lamina propria by atypical lymphoid cells ([a] H and E, ×100). The cells are medium-sized with moderate pleomorphism, vesicular to hyperchromatic nuclei and conspicuous nucleoli ([b] H and E, ×200). Small lymphocytes, eosinophils are seen interspersed within the malignant cells ([c] H and E, ×400). The malignant lymphoid cells are focally positive for CD3 ([d] IHC, ×100), diffusely immunopositive for CD4 ([e] IHC, ×200), and focally for CD8 ([f] IHC, ×200)

Figure 4: Photomicrographs showing fragments of duodenal mucosa with infiltration of lamina propria by atypical lymphoid cells ([a] H and E, ×100). The cells are medium-sized with moderate pleomorphism, vesicular to hyperchromatic nuclei and conspicuous nucleoli ([b] H and E, ×200). Small lymphocytes, eosinophils are seen interspersed within the malignant cells ([c] H and E, ×400). The malignant lymphoid cells are focally positive for CD3 ([d] IHC, ×100), diffusely immunopositive for CD4 ([e] IHC, ×200), and focally for CD8 ([f] IHC, ×200)