ABSTRACT Pancreatic pseudocyst-portal vein fistulae are extremely rare, and cause serious complications, including life-threatening sepsis. We report a 57-year-old man with pancreatic pseudocyst who was admitted to our hospital complaining of prolonged abdominal pain. A pancreatic duct tube was placed into the main pancreatic duct, as the pseudocyst was communicated to the pancreatic duct. He fell into septic shock state two weeks later. An ultrasonography-guided percutaneous drainage of the pseudocyst was performed. The amylase level of drained pus was 80,000 U/l. Pancreatic pseudocyst-portal vein fistula was demonstrated by fisterography. Symptoms disappeared immediately after drainage. No recurrence was observed afterward.
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