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서용우 ( Young Woo Seo ),이동엽 ( Dong Yub Lee ),박민규 ( Min Gyu Park ),장미영 ( Mi Young Jang ),고성준 ( Sung Jun Go ),김지웅 ( Ji Woong Kim ),조진웅 ( Jin Woong Cho ),주명진 ( Myeong Jin Chu ) 전북대학교 의과학연구소 2011 全北醫大論文集 Vol.35 No.2
In rare cases, mucinous gastric adenocarcinoma resembles the endoscopic feature of a subepithelail tumor (SET). Mucinous gastric adenocarcinoma with SET-like appearance is hard to diagnose if we rely only on endoscopic features. Because the tumor surface is covered with normal mucosa, biopsy specimens are frequently non-diagnostic, even if obtained repeatedly. Various techniques including endoscopic snare excision, EUS-FNA, as well as endoscopic submucosal dissection (ESD) were used to enhanced the diagnostic accuracy in atypical SET. We reported a case of mucinous gastric adenocarcinoma presenting as a SET in a 65-year-old women, which was initially considered to be subepithelial tumor by the endoscopic examination. Because of strong suspicious of malignancy based on the fixed soft mass with eccentric shallow ulcer on the surface and hypoechoic mass on 3rd layer, ESD was performed to establish the correct diagnosis. Histopathologic examination after ESD revealed mucinous gastric adenocarcinoma.