Gangliocytic Paraganglioma of the Duodenum Resected by Endoscopic Polypectomy, Report of a Case Jiro Miyaike 1 , Motoaki Kuriyama 1 , Kyouichirou Nishina 1 , Masakichi Umeda 1 , Masashi Ishikawa 3 1Department of Internal Medicine, Saiseikai Imabari Hospital 2Department of Pathology, Saiseikai Imabari Hospital Keyword: gangliocytic paraganglioma , duodenal tumor , 内視鏡的切除 pp.1443-1447
Published Date 2000/10/25
DOI https://doi.org/10.11477/mf.1403104903
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 A case of gangliocytic paraganglioma of the duodenum was reported. The patient was a 64-year-old woman. An upper gastrointestinal series of tests and endoscopy revealed a polypoid tumor in the second portion of the duodenum. Endoscopic ultrasonography showed the tumor with inhomogeneous echotexture in the submucosa. Endoscopic polypectomy was performed. Histopathologically, epithelioid cells were arranged in nests and ganglion-like cells were scattered and surrounded by spindle cells. Immunohistochemical staining for neuron specific enolase, S-100 and chromogranin showed positive results. Thus, the tumor was diagnosed as a gangliocytic paraganglioma. This disease is so rare that only 23 cases have been reported in Japan so far.

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