Abstract
A 39-year-old man was admitted with abdominal pain, abdominal distension and vomiting without a history of abdominal surgery. The patient underwent conservative therapy using a long tube, because abdominal computed tomography showed dilatation of the small intestine and suspected presence of internal hernia. Although symptomatic remission could be achieved with depression of the intestine, intestinal contrast study through the long tube still showed obstruction of the small intestine. A laparoscopic surgery was carried out with a diagnosis of ileus due to internal hernia. A loop of small intestine was incarcerated in the intersigmoid fossa, so we extracted the small intestine. Bowel resection was not required. The patient was discharged from the hospital on the 10th day after surgery. We report a rare case of intersigmoid hernia, the incarceration of which was reduced by laparoscopic surgery.