Duodenal Gangliocytic Paraganglioma Resected by Endoscopy, Report of a Case Shunsuke Nakajima 1 , Yusuke Saitoh 1 , Masaki Taruishi 1 , Ryuji Sugiyama 1 , Satoshi Suzuki 1 , Kazumasa Nakamura 1 , Ryuji Sukegawa 1 , Kenichiro Ozawa 1 , Atsushi Chiba 1 , Akio Takada 2 , Tadakazu Shimoda 3 1Digestive Disease Center, Asahikawa City Hospital, Asahikawa, Japan 2Division of Pathology, Asahikawa City Hospital, Asahikawa, Japan 3Clinical Laboratory Division, National Cancer Center, Tokyo Keyword: gangliocytic paraganglioma , 十二指腸粘膜下腫瘍 , 膨大部領域 , EUS , 内視鏡切除 pp.1685-1692
Published Date 2011/10/25
DOI https://doi.org/10.11477/mf.1403102387
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 A 51-year-old man was adimitted to our hospital because of a duodenal submucosal tumor found during a regular medical checkup. Upper gastrointestinal endoscopy revealed a 30-mm sized submucosal tumor located just below the major vater of the duodenal 2nd portion. Endoscopic ultrasonography showed the hypoechoic tumor located in the submucosa with cystic lesions. No metastatic lesion was delineated by an abdominal CT scan. Endoscopic polypectomy using a loop snare was performed without any complications. The tumor was histologically diagnosed as a gangliocytic paraganglioma. It is clinically important to recognize that a submucosal tumor may be a gangliocytic paraganglioma if the submucosal tumor is located near the ampullary region and is visualized with cystic compornents by EUS. Because gangliocytic paraganglioma is generally a benign tumor, it is important that the tumor should be resected in a less invasive fashion such as endoscopic resection.

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