The pancreaticojejunal anastomosis can usually be seen on CT. The anastomosed loop of bowel may be collapsed and empty, creating a soft tissue bulge arising from the anterior aspect of the pancreatic body and/or tail. This may be mistaken for a tumor when collapsed, or an abscess or pseudocyst when full of fluid and/or gas.
The anastomosed loop of bowel may also contain small amounts of fluid or gas, mimicking an abscess, or be filled with refluxed enteric contrast. In some cases, however, the anastomosis may not be clearly seen.
You may also seen peripancreatic stranding, pancreatic calcifications, or gas or enteric contrast within the pancreatic duct. Some patients who also have a choledochoduodenostomy, choledochojejunostomy, hepaticoduodenostomy, or hepaticojejunostomy before or during the Puestow procedure may also demonstrate pneumobilia.
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