Acute intestinal obstruction caused by paraduodenal herniapreviously healthy 50-year-old male presented with persistent abdominal pain and discomfort with nausea and vomiting for 12 h. There was no obvious relief of abdominal pain after vomiting. Antispasmodic treatment was given and the symptoms improved. Abdominal pain occurred again 5 h ago. The abdomen showed softness, tenderness in the left upper, and no rebound pain. The laboratory finding showed that blood glucose was slightly higher, albumin was lower. Coronal reconstruction of computed tomography (CT) showed dilatation of the intestine, which was wrapped into a mass (Fig. 1a, arrow). CT revealed gas store, dilatation and cystic appearance of the left upper abdominal intestine (Fig. 1b-d, arrow). The patient was diagnosed as left paraduodenal hernia. An emergency laparoscopic exploration was subsequently performed.