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http://dx.doi.org/10.2214/AJR.05.1328DOI Listing

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We report the case of a 25-year-old man who was undergoing follow-up for neurofibromatosis type 1. The man underwent 68 Ga-DOTATOC PET/CT for a suspected well-differentiated duodenal neuroendocrine tumor. This examination did not reveal any significant uptake, whereas complementary 18 F-FDG PET/CT showed moderate 18 F-FDG uptake in the primary tumor as well as the adenopathy.

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A 52-year-old woman underwent esophagogastroduodenoscopy after an abnormal medical examination, which revealed a mass lesion over half the circumference of the superior duodenal angulus. Immunostaining was diffusely positive for somatostatin, synaptophysin, and chromogranin A. A 3 cm-sized mass in the pancreaticoduodenal region and multiple nodular lesions of a few mm in both lobes of the liver were revealed by CT.

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Article Synopsis
  • * A functioning syndrome is characterized by a clinical presentation and high levels of specific hormones due to the presence of NETs, with several types identified, including insulinoma and gastrinoma.
  • * The recommendations include approaches for biochemical, genetic, and imaging assessments, as well as management strategies for different hormonal syndromes in pancreatic NETs, particularly for well-differentiated tumors.
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