Annular Pancreas

  • Etiology: congenital malformation of ring of pancreatic tissue which surrounds duodenum
  • UGI: narrowing at second part of duodenum
  • Clinical: obstructive symptoms, always associated with duodenal stenosis or atresia

Radiology Cases of Annular Pancreas

UGI of annular pancreas
Lateral image from an upper GI exam shows complete obstruction at the second part of the duodenum.