Presentation
Epigastric pain
Patient Data
Age: 25 years
Gender: Male
From the case:
Complete annular pancreas
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Axial contrast enhanced images of upper abdomen in arterial phase show pancreas completely encircling the second part of duodenum, consistent with complete annular pancreas. No obstruction is seen.
From the case:
Complete annular pancreas
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Annotated image of arterial phase shows complete encasement of duodenum (labeled as D) by the enhancing pancreatic parenchyma (labeled as P).
Case Discussion
Annular pancreas is a result of ventral bud non-rotation resulting in varying degrees of encasement of duodenum by the pancreas. Complete annular pancreas presents in neonates with obstruction and can be incidentally found in adults, as in our case. Pancreatitis can be a presenting feature in adults.
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