Unusual tubular cystic lesion compressing inferior vena cava.

摘要: Fluid collections are important local complications of acute pancreatitis (AP). They usually located in peri-pancreatic region but can also be found various atypical locations like mediastinum, spleen, liver, pelvis or neck. Such pancreatic fluid cause diagnostic dilemma and may delay management. We report an interesting case AP who presented to us with a walled-off necrosis mimicking long cystic mass lesion surrounding the IVC.