title: Endoscopic resection of subepithelial tumors.
abstract: Management of subepithelial tumors (SETs) remains challenging. Endoscopic ultrasound (EUS) has improved differential diagnosis of these tumors but a definitive diagnosis on EUS findings alone can be achieved in the minority of cases. Complete endoscopic resection may provide a reasonable approach for tissue acquisition and may also be therapeutic in case of malignant lesions. Small SET restricted to the submucosa can be removed with established basic resection techniques. However, resection of SET arising from deeper layers of the gastrointestinal wall requires advanced endoscopic methods and harbours the risk of perforation. Innovative techniques such as submucosal tunneling and full thickness resection have expanded the frontiers of endoscopic therapy in the past years. This review will give an overview about endoscopic resection techniques of SET with a focus on novel methods.
authors.affiliation: Arthur Schmidt, Markus Bauder, Bettina Riecken, Karel Caca, Department of Gastroenterology and Oncology, Klinikum Ludwigsburg, 71640 Ludwigsburg, Germany.
authors.forename: Arthur
authors.initials: A
authors.lastname: Schmidt
authors.affiliation: Arthur Schmidt, Markus Bauder, Bettina Riecken, Karel Caca, Department of Gastroenterology and Oncology, Klinikum Ludwigsburg, 71640 Ludwigsburg, Germany.
authors.forename: Markus
authors.initials: M
authors.lastname: Bauder
authors.affiliation: Arthur Schmidt, Markus Bauder, Bettina Riecken, Karel Caca, Department of Gastroenterology and Oncology, Klinikum Ludwigsburg, 71640 Ludwigsburg, Germany.
authors.forename: Bettina
authors.initials: B
authors.lastname: Riecken
authors.affiliation: Arthur Schmidt, Markus Bauder, Bettina Riecken, Karel Caca, Department of Gastroenterology and Oncology, Klinikum Ludwigsburg, 71640 Ludwigsburg, Germany.
authors.forename: Karel
authors.initials: K
authors.lastname: Caca
keywords: Endoscopic full thickness resection; Endoscopic resection; Gastrointestinal stromal tumors; Subepithelial tumors; Submucosal tumors