Pyloric stenosis due to Crohn's disease

Gastroduodenal involvement by Crohn's disease is relatively rare and occasionally causes pyloric stenosis, for which medical therapy may be ineffective and surgery may be required. We report on a 44-year-old man patient in whom corticosteroids had a marked effect in reducing pyloric stenosis caused by Crohn's disease. A proton-pump inhibitor was not effective, and Helicobacter pylori was negative.