[Intraluminal diverticulum of the duodenum].

The intraluminal diverticulum of the duodenum is a rare disease. Up to now about 50 cases were described. The case in question is a saccate evagination of the duodenal mucous membrane near Vater's papilla. The diverticulum lies within the duodenal lumen and inside and outside it is coated by duodenal mucous membrane. The clinical symptomatology is unspecific. As a rule, the diagnosis is made roentgenologically by a gastrointestinal passage. In the present case the diverticulum contained gallstones and could be represented by an intravenous cholangiography. This was conditioned by the position of the papilla in the diverticulum.