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CECT of a 51-year-old female showing walled-off necrosis (WON) after an episode of necrotizing pancreatitis. WON is seen in the pancreatic- as well as peripancreatic region and is characterized by well-defined, thick, enhancing wall (arrows). Collection appears heterogeneous with evidence of liquefied as well as non-liquefied components in the form of areas of trapped fat (arrowhead).
