A 27-year-old male presented with a history of gastric pain combined with nausea and abdominal distension that had been present for 5 d.
[ncbi.nlm.nih.gov]
In the proximal, small gut occlusion could occur at a lower degree of abdominal distension or no distension: intestinal occlusion without distension.
[intechopen.com]
Vomiting (161, 74.2%), abdominal pain (152, 70%), abdominal tenderness (113, 52.1%), constipation (111, 51.2%), and abdominal distension (104, 47.9%) were the predominant
[ncbi.nlm.nih.gov]