憩室内に胆汁酸腸石を認めた十二指腸憩室穿孔の1例

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  • A CASE OF PERFORATED DUODENAL DIVERTICULA WITH A BILE ACID ENTEROLITH

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A 70-year-old woman, who was admitted to our hospital for upper abdominal pain, was referred to surgery for peritonitis. An abdominal CT scan indicated pneumoretroperitoneum at the upper polar of the right kidney and no ulcer was found by upper gastrointestinal endoscopy. Perforation of the colonic diverticula was diagnosed and the patient underwent an emergency operation. An abscess formation in the retroperitoneal space behind the second portion of duodenum was found at laparotomy and a stone in the abscess was demonstrated by ultrasonography.<br>Duodenal perforation at the second portion with a palpable stone was revealed by way of a mobilization of the duodenum, Inspection via a small duodenotomy of the second portion indicated the stone was an enterolith associated with the diverticula. After removal of the enterolith, we closed the perforation and the duodenotomy, and cholangiodrainage and retroperitoneal drainage were performed. Analysis indicated the enterolith was a bile acid enterolith consisting of deoxycholic acid. In Japan, nine cases have been reported with a duodenal diverticulum containing a stone but no case with perforation associated with an analyzed bile acid enterolith has been reported.

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