title: Duodenal gastrointestinal stromal tumor and endoscopic ultrasound.
abstract: Duodenal gastrointestinal stromal tumors (GISTs) are a very rare condition. The pre-operative diagnosis can be a challenge but it is very important because GISTs have singularities that differ from other tumors and their location in the duodenum itself can have a major role in the choice of the surgical approach. We present two cases of duodenal GISTs where endoscopic ultrasound had a single role in their management, namely allowing the possibility to obtain material for immunocytochemical pre-operative diagnosis and regarding the precise relation to the papilla of Vater. The patients were operated and histological examination confirmed the diagnosis in both cases.
authors.affiliation: Department of Gastroenterology, ManoPh-CUF Institute , Portugal.
authors.forename: Fernando M
authors.initials: FM
authors.lastname: Castro-Poças
authors.affiliation: Gastrenterologia, Centro Hospitalar do Porto, Portugal.
authors.forename: Tarcísio P
authors.initials: TP
authors.lastname: Araújo
authors.affiliation: University of Porto. Portugal.
authors.forename: Jorge D
authors.initials: JD
authors.lastname: Silva
authors.affiliation: Department of Pathology, Centro Hospitalar do Porto, Portugal.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Lopes
authors.affiliation: Department of Gastroenterology, ManopH, Portugal.
authors.forename: Miguel
authors.initials: M
authors.lastname: M Saraiva
mesh_terms: D000368:Aged; D004379:Duodenal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D019160:Endosonography; D046152:Gastrointestinal Stromal Tumors / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008875:Middle Aged