Abstract
We report a patient without a history of abdominal surgery who demonstrated small bowel obstruction caused by a band of lesser omentum. A 31-year-old man presented to our hospital with sudden abdominal pain. Abdominal X-ray and computed tomography of the abdomen showed dilated loops of small bowel with air-fluid level. Therefore, he was admitted to our hospital with a diagnosis of small bowel obstruction. Because symptoms were not improved by conservative treatment, emergency surgery was performed the next day. At laparotomy, we found that the proximal small bowel had become ischemic due to strangulation by a band between the liver and the lesser curve of the stomach. When the band was divided, blood flow of the bowel recovered and we decided not to resect the bowel. The band consisted of lesser omentum and showed mild inflammation on histological examination. Strangulated small bowel obstruction caused by a lesser omental band is very rare and, to our knowledge, this might be the first case reported in Japan.
