Cystic duplication of the colon combined with nonrotation anomaly imitating pyloric stenosis

Cystic duplication of the large intestine is a rare anomaly which may give no clinical symptoms. When combined with a nonrotation anomaly it may enhance the symptoms of a high gastro-intestinal obstruction. A case is presented where the combination of these two conditions gave intermittent symptoms simulating a duodenal or a pyloric stenosis.