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(A) A computed tomography scan demonstrating a large ulcerofungating hypodense mass in the anterior gastric wall (arrow) and enlargement of multiple perigastric lymph nodes (arrowhead). Macroscopic findings (B) and cross-section of gastric cancer (C). (D) Mapping of the gastric mixed adenoneuroendocrine carcinoma with trilineage histologic differentiation composed of adenocarcinoma (pink color), large cell neuroendocrine carcinoma, and squamous cell carcinoma (green color).
