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Dae Chul Seo 1 Article
Endoscopic Ultrasound-Guided Sampling of a Metastatic Mucinous Adenocarcinoma Mimicking a Gastric Subepithelial Tumor
Dae Chul Seo, Tae Hee Lee, Yoon Mi Jeen, Hyun Gun Kim, Eui Bae Kim, Sang Cheol Lee
Clin Endosc 2014;47(5):460-463.   Published online September 30, 2014
DOI: https://doi.org/10.5946/ce.2014.47.5.460
AbstractAbstract PDFPubReaderePub

Metastatic mucinous adenocarcinoma of appendix origin and mimicking a gastric subepithelial tumor (SET) is very rare. Endoscopic ultrasound (EUS)-guided sampling is a useful diagnostic method for SETs. However, the cytologic findings of metastatic mucinous adenocarcinoma are unfamiliar to many pathologists and gastroenterologists. These findings present a diagnostic challenge because the introduction of gastric epithelium and mucin into the specimen during the procedure can be misleading. This is the first reported experience of an EUS-guided sampling of a gastric SET in a patient with suspected appendiceal tumor, to make the diagnosis of a mucinous adenocarcinoma.

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