Abstract

A 7-month-old boy was admitted to the hospital because of bilous vomiting and abdominal distension lasting for 4days on August 24, 1993. The abdomen was distended and tympanic. A plain abdominal X-ray film showed a fluid level in the dilated intestinal loop. No abnormalities were revealed on a barium enema study. An emergency laparotomy was performed with a diagnosis of intestinal obstruction. Omphalomesenteric band remnants were observed between the umbilical region and the end of the dilated small intestine, and at the tip of Meckel's diverticulum which was found about 20cm proximal to ileocecal valve. The dilated small intestine twisted around the band toward more than 180 degree to counterclockwise direction and the band strangled the Meckel's diverticulum and the anal side of the ileum. A short segment of the ileum involving the Meckel's diverticulum was resected and an end-to-end anastomosis was performed. A histopathological examination of the omphalomesenteric band revealed that the band contained mucosa and muscularis propria on the diverticulum side, and the dilated blood vessels on the umbilical side.

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