[Duplicature of the duodenum (author's transl)]. / Duplikatur des Duodenums.

A case of duodenal duplication in an adult is presented with endoscopic, radiographic and operative findings. Successful therapy consisted in retromesocolic duodenal-duplication-jejunostomy. The literature concerning congenital duplications of the small intestine-especially duodenal duplications-is reviewed.