title: Gastric duplication cyst removed by endoscopic submucosal dissection.
abstract: Duplication cysts are uncommon congenital malformations that may occur anywhere throughout the alimentary tract. The stomach is an extremely rare site of occurrence. Here, we report a case of gastric duplication cyst initially presenting with a gastric submucosal tumor. A 28-year-old man complained of dyspepsia lasting 1 year and upper endoscopy revealed an ellipsoid submucosal tumor at the greater curvature of the antrum. We intended to use the injection-and-cut technique: however, after saline injection, the lesion was dented and impossible to grasp with a snare. Therefore, we decided to perform endoscopic submucosal dissection and removed the tumor without complication. Histopathology revealed a 0.6×0.6 cm-sized duplication cyst, and there has been no recurrence in 2 years.
authors.affiliation: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors.forename: Jung Seop
authors.initials: JS
authors.lastname: Eom
authors.forename: Gwang Ha
authors.initials: GH
authors.lastname: Kim
authors.forename: Geun Am
authors.initials: GA
authors.lastname: Song
authors.forename: Dong Hoon
authors.initials: DH
authors.lastname: Baek
authors.forename: Kwang Duck
authors.initials: KD
authors.lastname: Ryu
authors.forename: Kyung Nam
authors.initials: KN
authors.lastname: Lee
authors.forename: Do Youn
authors.initials: DY
authors.lastname: Park
mesh_terms: D000328:Adult; D003560:Cysts / Q000151:congenital / Q000473:pathology* / Q000601:surgery*; D004210:Dissection; D005753:Gastric Mucosa / Q000473:pathology* / Q000601:surgery*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D011706:Pyloric Antrum / Q000473:pathology; D013272:Stomach Diseases / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D014463:Ultrasonography