CASE 145

History: A 49-year-old man with chronic alcoholic pancreatitis presents with increasing right upper quadrant pain. Liver function tests show increased bilirubin.

1. What should be included in the differential diagnosis of the imaging finding shown in Figure A? (Choose all that apply.)

A. Acute pancreatitis

B. Pancreas divisum

C. Chronic pancreatitis

D. Senile pancreatic atrophy

E. Patulous sphincter of Oddi

2. What is the tumor most commonly diagnosed in association with dilation of the pancreatic duct?

A. Glucagonoma of the pancreaticoduodenal groove

B. Ductal adenocarcinoma of the pancreatic head

C. Ampullary duodenal adenocarcinoma

D. Intraductal papillary mucinous tumor

3. What is the significance of signal poor filling defects within a dilated pancreatic duct on magnetic resonance cholangiopancreatography (MRCP)?

A. Clots

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