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[Duodenal duplication. Report of 2 cases in adults and review of the literature].

Two cases of adult male patients with symptomatic duodenal duplication cysts are reported. The clinical manifestations were vomiting and epigastric pain in the first case and recurrent pancreatitis with a palpable mass in the right upper quadrant of the abdomen in the second. In both cases the diagnosis was only histological and the patients recovered after local excision of the duplication and duodenopancreatectomy, respectively. These two cases prompted an evaluation of the diagnostic features and surgical treatment of duodenal duplication cysts.