Fig. 19
From: Imaging of non-neoplastic duodenal diseases. A pictorial review with emphasis on MDCT
Acute cholecystitis in a 54-year-old man. a Ultrasonography identified an enlargement of the lateral wall of the duodenum (white arrows) that was accompanied by a periduodenal fluid collection (*). b Reformatted coronal contrast-enhanced CT image shows a distended gallbladder with inaccurate margins (black arrow) and confirms the presence of a periduodenal fluid collection (*). Also note the secondary duodenal wall involvement (white arrow)