A Rare Hernia Bursae Omentalis Accompanied by Dysplasia of the Gastrocolic Ligament

We report a rare case of small-bowel obstruction due to hernia bursae omentalis. A 61-year-old man was admitted because of upper abdominal pain. Abdominal CT images revealed a dilated small intestine loop on the side of the lesser curvature of the stomach. Intestinal obstruction was diagnosed, and to relieve his symptoms, we placed a long tube. However, his symptoms did not improve. Thus, an open surgery was performed on the next day. We found that the ileum was herniated into the omental bursa through the gastrocolic ligament. Because intestinal necrosis had developed, the necrotic intestine was removed and the intestine was reconstructed. The patient had an uneventful postoperative course and was discharged on postoperative day 14. This case was similar to that of a transomental hernia, however, there was no hiatus of the greater omentum. Hernia bursa without hiatus is rare. In particular, our case is one of the very few cases of hernia bursae omentalis with dysplasia of the gastrocolic ligament.