CT or MRI studies may show normal<unk> ic tissue, with or without a small<unk> ic duct, encircling the duodenum.
Annular pancreas CT
Zollinger-Ellison syndrome CT
Zollinger-Ellison syndrome CT scan
Whipple's disease CT
Pancreatitis CT
Zollinger-Ellison syndrome MRI
Chronic pancreatitis ultrasound
Sialolithiasis CT