[Perforation of a gall stone causing incomplete duodenal stenosis (author's transl)]

A case report is given of a 78 year old woman, who showed clinical symptoms of incomplete duodenal stenosis after perforation of a gall stone into the duodenum. The diagnosis was established by X-ray examination and endoscopy. The biliary stone measuring approx. 3 cm in diameter was stuck in the pyloric channel and was removed surgically. Incidence, sex and age distribution and complications of cholelithiasis are shortly discussed.