Early colon cancer with enteropathy-associated T-cell lymphoma involving the whole gastrointestinal tract: A case report

Figure 4 Pathology of the colon and duodenum A: Descending colon. Villous adenoma with focal carcinogenesis (moderately differentiated adenocarcinoma), limited to the mucosal layer, was observed (× 100); B: Descending colon. There was diffuse atypical lymphocyte proliferation with a single form mainly infiltrated in the mucosal epithelium and lamina propria, partly invading the submucosa (× 400); C: Duodenum. Several lymphocytes infiltrated in the mucosal layer (× 100); D: Duodenum. Atypical lymphocytes accumulated in the mucosal layer with medium-sized cell bodies consisting of few cytoplasm and large oval or irregular nucleus containing coarse chromatin (× 400).