Duodenal Gangliocytic Paraganglioma: Endoscopy, Sonography and F-18 FDG PET/CT imaging

We report a case of duodenal gangliocytic paraganglioma (GP). Duodenal GP is a rare subepithelial lesion that typically arises from the region of the major duodenal papilla. It is the third most common duodenal neuroendocrine tumor (NET), after gastrinoma and somatostatinoma. According to the World Health Organization classification, duodenal GP is considered a benign lesion, even though occasionally it may exhibit regional lymph node metastasis. Its clinical manifestations include gastrointestinal bleeding, abdominal pain and anemia.

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