Gastrointestinal manifestations, risk factors, and management in patients with post-transplant lymphoproliferative disorder: A systematic review

Figure 5 Post-transplant lymphoproliferative disorder, monomorphic type (diffuse large B-cell lymphoma, non-germinal center type) arising from an ulcerated anal mass. A: 4 ×/6 mm; B: 60 ×/400 μm; C: 100 ×/240 μm; D: 100 ×/240 μm. Hematoxylin & eosin stain showed a diffuse lymphoid infiltrate composed of large pleomorphic cells with clear to eosinophilic cytoplasm, irregular nuclear contours, and prominent nucleoli in a background of fibroadipose tissue. Ki-67 showed high proliferation index.