Heterotopic gastric mucosa in the gallbladder: A cause of chronic abdominal pain in a child
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A 12-year-old boy presented with a 7-year history of intermittent colicky epigastric pain. Serial abdominal ultrasound studies showed a contracted gallbladder, and single and double dose oral cholecystograms demonstrated nonfunction. All other investigation results were normal. At cholecystectomy, there was a fibrotic stricture at the junction of the gallbladder neck and cystic duct. The small, thin-walled gallbladder contained white bile. Histologically, the gallbladder was lined with normal mucous secreting columnar epithelium. The area of stricture showed diffuse fibrosis with islands of heterotopic gastric mucosa containing all gastric mucosal cell types. One year postoperatively, there have been no further episodes of abdominal pain. This is the seventh reported case of heterotopic gastric mucosa in the gallbladder of a child causing symptoms necessitating cholecystectomy. We recommend that a child with abdominal pain and a nonfunctioning gallbladder be considered for cholecystectomy even in the absence of cholelithiasis.
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