A duplication of the alimentary canal.
D003560:Cysts; D004064:Digestive System / Q000473:pathology; D004065:Digestive System Abnormalities; D005260:Female; D005753:Gastric Mucosa; D006801:Humans; D007223:Infant; D010179:Pancreas; D014839:Vomiting / Q000209:etiology