Abstract
We report a case of duodenal stenosis due to delayed onset mesenteric hematoma. A 71-year-old male was admitted to our hospital because of frequent vomiting and abdominal fullness 14 days after minor blunt abdominal trauma by a traffic accident. Upper GI examination showed severe stenosis of the fourth portion of the duodenum. An abdominal enhanced CT showed a large cystic lesion in the jejunal mesenterium, and removal of hematoma and gastrojejunostomy were performed because conservative therapy was not effective. The postoperative course was uneventful.