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Pancreaticoduodenectomy (Whipple resection) and partial pancreatectomy. (a) Pancreas, 40×, hematoxylin and eosin (H&E) stain. The blue arrow indicates normal pancreatic parenchyma; the yellow arrow indicates moderately differentiated adenocarcinoma, characterized by infiltrating glands. (b) Lymph node, 100×, H&E stain. Lymph node with metastatic adenocarcinoma (blue arrow indicates metastasis).
