Reduplication of the esophagus presenting as mideosophageal web and diverticulum.

A 56-year-old man experienced intermittent sticking of food with increasing severity for 13 years. Dysphagia was due to a web-like narrowing at the junction of the upper and middle thirds of the esophagus, associated with a small diverticulum-like outpouching. Endoscopic dilatation and subsequent barium x-ray studies showed it to represent the origin of a complete reduplication of the esophagus. Esophagoscopic manipulation produced complete relief of dysphagia while access of swallowed radiopaque material to the reduplicated segment was transitory.