MRI
Pancreas
The pancreas is enlarged and bulky in appearance, particularly through the head and body segments. The tail is slightly atrophied in appearance. The pancreatic duct is not dilated measuring under 2 mm but appears slightly irregular through its course. There is loss of surface lobulation, delayed parenchymal enhancement and increased signal on diffusion imaging. The overall constellation of features raises concern of autoimmune pancreatitis.
Gallbladder
The gallbladder is bile-filled and contains layering sludge.
Bile ducts: The CBD is dilated tapering to the level of the pancreatic head. The CBD channel through the pancreatic head appears small in calibre and incompletely visualized through its course. The intrahepatic ducts are dilated.