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Case Reports
Journal Article
Multiple carcinoids of the duodenum accompanied by type I familial multiple endocrine neoplasia.
Surgery Today 1998
A case of multiple carcinoid tumors of the duodenum accompanied by familial multiple endocrine neoplasia is reported. A 46-year-old man with duodenal polyps discovered during a mass screening was followed up for 5 years. In August 1994, a histological examination revealed carcinoid tumors, and he was thus referred to our hospital for surgery. He underwent a parathyroidectomy and cholecystectomy for primary hyperparathyroidism and cholecystolithiasis, respectively. The patient's sister had also undergone a parathyroidectomy and distal pancreatectomy for primary hyperparathyroidism and insulinoma of the pancreas. In addition, his two children were also followed up for hypercalcemia. A serum examination of the patient revealed high levels of somatostatin and pancreatic polypeptide, but normal levels of gastrin and serotonin. In November 1994, a pancreaticoduodenectomy with a D2 lymph node dissection was performed. The macroscopic findings of the resected specimen showed multiple polypoid lesions with delles on the top, measuring 3 to 15 mm in size throughout the duodenum. A microscopic examination revealed the tumor to have infiltrated into the submucosa extensively, and an immunohistochemical analysis also demonstrated the tumor cells to be positive for somatostatin, but not for pancreatic polypeptide. After surgery, the serum level of somatostatin returned to normal but the pancreatic polypeptide remained high. The post-operative course was uneventful, and the patient remains in good health.
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