Figure 2.
CECT of the abdomen. (a) Axial image showing sheet-like hypoenhancement (arrow) in the pancreaticoduodenal groove with a bulky pancreatic head. (b) Axial image demonstrating irregular, heterogeneously enhancing circumferential duodenal wall thickening at the D1–D2 junction (arrow) causing luminal narrowing with surrounding fat stranding.
