, Byung Ik Jang
, Sang Wook Kim
, Jie-Hyun Kim, Hyung Keun Kim
, Jeong Eun Shin
, Won Jae Yoon
, Yong Kang Lee
, Kwang Hyun Chung
, Soo-Jeong Cho
, Hyun Phil Shin
, Sun Young Cho
, Woon Geon Shin
, Kee Don Choi
, Byung-Wook Kim
, Joong Goo Kwon
, Hee Chan Yang
, Tae-Geun Gweon
, Hyun Gun Kim
, Dong-Won Ahn
, Kwang Bum Cho
, Sun Hee Kim
, Kyong Hwa Hwang
, Hee Hyuk Im
Citations

, Min-Seob Kwak
, Sang Hyoung Park
, Byong Duk Ye
, Jeong-Sik Byeon
, Seung-Jae Myung
, Suk-Kyun Yang
, Hyun Gun Kim
, Shai Friedland
Citations

Citations

, Jeong Seop Moon
, Dong Su Han
, Yong Chan Lee
, Yeol Kim
, Bo Young Park
, Il-Kwun Chung
, Jin-Oh Kim
, Jong Pil Im
, Jae Myung Cha
, Hyun Gun Kim
, Sang Kil Lee
, Hang Lak Lee
, Jae Young Jang
, Eun Sun Kim
, Yunho Jung
, Chang Mo Moon
, Ethics and Quality Control Committee of Korean Society of Gastrointestinal Endoscopy Citations

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.
Citations

Recently, increasingly invasive therapeutic endoscopic procedures and more complex gastrointestinal surgeries such as endoscopic mucosal resection, endoscopic submucosal dissection, and novel laparoscopic approaches have resulted in endoscopists being confronted more frequently with perforations, fistulas, and anastomotic leakages, for which nonsurgical closure is desired. In this article, we present our experiences with the use of over-the-scope clip (OTSC) for natural orifice transluminal endoscopic surgery (NOTES) closure, prevention of perforation, anastomotic leakages, and fistula closures. The OTSC is a valuable device for closing intestinal perforations and fistulas, for NOTES closure, and for the prevention of perforation after the excision of a tumor from the proper muscle layer. Furthermore, it seems to be quite safe to perform, even by endoscopists with little experience of the technique.
Citations

Hypopharyngeal cancers are often diagnosed at an advanced stage and have a poor prognosis. Even when they are diagnosed at an operable stage, surgery often results in substantial morbidity and decreased patients' quality of life. Although the endoscopic diagnosis of early hypopharyngeal cancer is difficult, recent developments in advanced imaging endoscopy have enabled easier diagnosis of these lesions. Endoscopic resection of early hypopharyngeal cancer is a potential minimally invasive treatment that can preserve the function and quality of life of patients. Reports of this procedure are limited, however. We report a case of hypopharygeal cancer treated with endoscopic resection.
Citations

