70-year-old male with history of severe pancreatitis, now with a large pseudocyst. Evaluate pseudocyst. ABDOMEN:LIVER, BILIARY TRACT: No significant abnormality noted.SPLEEN: No significant abnormality noted.PANCREAS: There is a T2 heterogeneous with components of T1 hyperintensity, which are consistent with proteinaceous versus blood products, pancreatic and peripancreatic collection measuring 16.7 x 7.9 cm (series 4, image 16). This collection encases the splenic artery without evidence of a pseudoaneurysm. These findings are unchanged compared to the outside CT examination. Peripherally, the collection demonstrates contrast enhancement. The majority of the collection is non-liquefied.There is residual normal-appearing pancreatic head and uncinate process.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: No significant abnormality noted.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
Predominantly non-liquefied pancreatic/peripancreatic complex collection as above; findings most consistent with a large WON, walled off necrosis; superimposed infection not excluded.