[A Case of Resected Combined Pancreatic Mixed Ductal Adenocarcinoma and Neuroendocrine Tumor].

A 63-year-old man was followed-up for diabetes mellitus. During follow-up, computed tomography(CT)showed dilatation of the main pancreatic duct in the tail of the pancreas. Abdominal enhanced CT revealed a 25 mm tumor in the body of the pancreas. Endoscopic ultrasound-fine needle aspiration(EUS-FNA)was performed, and the pathological diagnosis was adenocarcinoma. Therefore, based on the diagnosis of pancreatic body carcinoma, distal pancreatectomy with splenectomy was performed. The postoperative course was uneventful. Histological and immunohistochemical examination revealed that the tumor consisted of a ductal carcinoma and a neuroendocrine component. Therefore, combined pancreatic tumor (fT3N1M0, StageⅡB)was diagnosed. The patient subsequently received postoperative adjuvant chemotherapy(S-1 100mg/ day), and survived without recurrence 6 months after the operation. We report this case of combined pancreatic tumors with a review of the literature.