Abstract
We report a case of giant epiphrenic diverticulum in a 43-year-old woman who underwent Heller's myotomy because of achalasia 20 years earlier. She complained of heartburn and dysphagia from March of 1991 and was hospitalized in our institution. An upper gastrointestinal X-ray examination with contrast medium revealed a large hemispheric lesion (7.8 x 4.8 cm) occupying the right posterior wall of the lower thoracic and abdominal esophagus. Manometry revealed a motility disorder and high pressure of the lower esophageal sphincter due to achalasia. Therefore she was diagnosed as having a giant diverticulum with achalasia after Heller's operation. She underwent transhiatal esophagectomy and reconstruction with placement of a gastric tube on June 4, 1992. Pathology results on the resected specimen revealed a false diverticulum. She has been doing well for 4 years since the operation. It has been said that a complication of incomplete long myotomy causes pulsion diverticulum, but we could not find a case of epiphrenic diverticulum after myotomy for achalasia reported in the literature in the last 10 years.
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