title: Gastric duplication in an adult mimicking mucinous cystadenoma of the pancreas.
abstract: Gastric duplication cyst (GDC) in an adult can have several clinical presentations. A review of the literature showed previously reported cases of GDC presenting as pancreatic pseudocyst or with greatly raised concentrations of carbohydrate antigen 19-9 (CA 19-9). It is often difficult to discriminate GDC from pancreatic cystic tumour, in particular pancreatic mucinous cystadenoma, in which concentrations of carcinoembryonic antigen and CA 19-9 are classically raised. This report describes an adult case of GDC mimicking a mucinous cystadenoma of the pancreas. This is the first report of a simultaneous increase in carcinoembryonic antigen and CA 19-9 in GDC in the absence of malignancy. Although few cases of carcinoma arising from a GDC having been reported, the production of oncofetal antigens raises the problem of a precancerous condition in long standing intestinal duplications. In this situation surgical resection must be performed.
authors.affiliation: Department of Surgical Oncology, Institut Paoli-Calmettes, 232 Boulevard de Sainte Marguerite, 13009 Marseille, France. benoitdjourno@wanadoo.fr
authors.forename: X B
authors.initials: XB
authors.lastname: D'Journo
authors.forename: V
authors.initials: V
authors.lastname: Moutardier
authors.forename: O
authors.initials: O
authors.lastname: Turrini
authors.forename: J
authors.initials: J
authors.lastname: Guiramand
authors.forename: B
authors.initials: B
authors.lastname: Lelong
authors.forename: C
authors.initials: C
authors.lastname: Pesenti
authors.forename: G
authors.initials: G
authors.lastname: Monges
authors.forename: M
authors.initials: M
authors.lastname: Giovannini
authors.forename: J R
authors.initials: JR
authors.lastname: Delpero
mesh_terms: D000328:Adult; D018291:Cystadenoma, Mucinous / Q000175:diagnosis*; D003560:Cysts / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D004848:Epithelium / Q000473:pathology; D005260:Female; D006801:Humans; D010190:Pancreatic Neoplasms / Q000175:diagnosis*; D013270:Stomach / Q000002:abnormalities*; D013272:Stomach Diseases / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed