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  • Title: Endoscopic resection of gangliocytic paraganglioma of the duodenum: a case report.
    Author: Ebi M, Ochiai T, Sugiyama T, Yamamoto K, Adachi K, Yamaguchi Y, Tamura Y, Izawa S, Hijikata Y, Yamamoto S, Funaki Y, Ogasawara N, Sasaki M, Kasugai K.
    Journal: Clin J Gastroenterol; 2020 Apr; 13(2):203-208. PubMed ID: 31535284.
    Abstract:
    Duodenal gangliocytic paragangliomas are extremely rare. A 79-year-old woman underwent gastrointestinal endoscopy for screening prior to resection of gallbladder carcinoma. Gastrointestinal endoscopy revealed a 5-mm submucosal tumor in the second portion of the duodenum. Contrast-enhanced computed tomography revealed no tumor or metastasis. Endoscopic ultrasonography revealed low echo pattern of the tumor. Histopathological examination of the biopsy specimen revealed proliferation of three types of cells (epithelioid cells, spindle cells, and ganglion cells). Immunohistochemical examination revealed that the tumor was positive for S-100 and synaptophysin. The preoperative diagnosis was gangliocytic paraganglioma. The tumor was completely resected by endoscopic mucosal resection (EMR). In conclusion, an early stage of gangliocytic paraganglioma of the duodenum could be resected using EMR.
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