[Incomplete membrane stenoses of the duodenum (author's transl)].

A report in 2 children with incomplete membrane stenoses of the duodenum and further abnormalities in the gastrointestinal tract, the urogenital region and on the skeleton. In the first case ileus symptoms existed in early infancy following operated anal atresia. A duodenal diverticulum near the papilla was found with reflux of contrast medium in the biliary and pancreatic tracts. In the second case the clinical symptoms were limited; however, the x-ray findings of an intraduodenal pseudodiverticulum were impressive. Both patients were operated successfully by removal of the incomplete duodenal membrane. Both cases clearly showed the great variability in clinical symptoms with etiologically similar disease patterns and typical x-ray signs.