A CT scan of a 55-year-old man presenting with severe abdominal pain and vomiting reveals a dilated, fluid-filled stomach and proximal duodenum, with the distal duodenum appearing collapsed. What could be the potential diagnosis?
This CT scan suggests a small bowel obstruction, with the transition point likely in the duodenum. Given the patient's age and symptoms, causes could include adhesions from previous surgery, hernias, or neoplasms. Other causes such as intussusception, volvulus, or inflammatory bowel disease are less likely but possible. Immediate consultation with general surgery is required, as bowel obstruction can be a surgical emergency.