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  • Title: Gangliocytic Paraganglioma of the Minor Papilla of the Duodenum.
    Author: Matsubayashi H, Ishiwatari H, Matsui T, Fujie S, Uesaka K, Sugiura T, Okamura Y, Yamamoto Y, Ashida R, Ito T, Sasaki K, Ono H.
    Journal: Intern Med; 2017; 56(9):1029-1035. PubMed ID: 28458307.
    Abstract:
    A duodenal polyp was found during a health check of a 71-year-old asymptomatic man. Duodenoscopy demonstrated a pedunculated, smooth-surfaced tumor of 18 mm in size, protruding from the minor papilla. Endoscopic ultrasonography demonstrated a homogeneously low-echoic submucosal tumor. Enhanced computed tomography and magnetic resonance imaging demonstrated a well-enhanced duodenal tumor without obvious metastasis. A tumor biopsy revealed a well-differentiated neuroendocrine tumor, and laparotomic transduodenal polypectomy with regional lymph node dissection was performed. The histology of the surgical specimen revealed gangliocytic paraganglioma consisting of three cell types: endocrine, ganglion, and spindle cells. There has been no recurrence in >5 years after surgery.
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