Pyloric stenosis - a complication of cholelithiasis. (Case of gallstone perforation into the duodenal bulb)

Pressure-necrosis followed by stone perforation is ralatively rare among the complications of cholelithiasis. There is always a danger of a stenosis in the gastro-intestinal tract. Report of a case of perforation of a gallstone into the duodenal bulb producing few signs but the clinical picture of pyloric stenosis. Symptoms, signs and differential diagnosis are discussed on the basis of the literature.