Fig. 5

In a 34-year-old female with unspecific abdominal pain and unremarkable endoscopic findings, the contracted gastric antrum showed at CT (a, b) apparent hypoattenuating mural thickening (*), which mimicked characteristic appearance of acute peptic disease but interrupted at the site of spasms and lacked mucosal hyperenhancement. Non-inflammatory circumferential oedematous mural thickening (*) of the proximal and descending duodenum is seen in a 43-year-old female with anasarca due to renal failure (c, d). In a 29-year-old alcohol-addicted male with interstitial oedematous acute pancreatitis, contrast-enhanced CT (e, f) showed normally enhancing pancreas, ill-defined oedematous duodenal wall (*) with associated periduodenal fluid and fat stranding (+) extending from the proximal to the third duodenum