title: Diagnostic challenge to distinguish gastric duplication cyst from pancreatic cystic lesions in adult.
abstract: We report herein a 63-year-old female with gastric duplication cyst (GDC), of which resected specimen was histologically shown to be composed of gastric foveolar epithelium and thin bundles of smooth muscle. Computed tomography revealed a thin-walled cystic lesion surrounded by the pancreatic tail, spleen, left kidney, and the stomach. Magnetic resonance imaging demonstrated a thin layer between the cyst and either the spleen or kidney, successfully excluding the possibility that the cyst originated from these organs. Endoscopic ultrasonography failed to show a smooth muscle bundle in the cyst wall, which is a diagnostic finding for GDC. Even retrospectively, these preoperative findings could not distinguish GDC from pancreas-originating cystic lesions. Despite the recent advances in diagnostic imaging modalities, preoperative diagnosis of GDC in adults remains difficult due in part to its rarity and the absence of characteristic findings.
authors.affiliation: Department of Surgery, Kochi Medical School, Nankoku.
authors.forename: Hiromichi
authors.initials: H
authors.lastname: Maeda
authors.forename: Takehiro
authors.initials: T
authors.lastname: Okabayashi
authors.forename: Isao
authors.initials: I
authors.lastname: Nishimori
authors.forename: Michiya
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Kaori
authors.initials: K
authors.lastname: Morimoto
authors.forename: Eiki
authors.initials: E
authors.lastname: Miyaji
authors.forename: Takuhiro
authors.initials: T
authors.lastname: Kohsaki
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Hanazaki
authors.forename: Saburo
authors.initials: S
authors.lastname: Onishi
mesh_terms: D003560:Cysts / Q000151:congenital* / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D010181:Pancreatic Cyst / Q000175:diagnosis; D013270:Stomach / Q000473:pathology; D013272:Stomach Diseases / Q000151:congenital* / Q000175:diagnosis* / Q000601:surgery