Monomorphic epitheliotropic intestinal T-cell lymphoma presenting as melena with long-term survival: A case report and review of literature

Figure 2 Histological and immunohistochemical analyses. A: Hematoxylin-eosin staining showed infiltration of medium-size atypical lymphoid cells in the mucosa; B: Lymphoid cell infiltration was also observed in the epithelium (arrow); C: Lymphoid cells expressed CD3; D: The lymphoid cells were CD8 negative; E: Lymphoid cells were CD56 positive. Magnification 200× (A, C-E) and 400× (B).