Pancreas CT Appearances

Annular Pancreas CT Findings

• Band of pancreatic tissue that completely or partially surrounds the duodenum
• Most common around the descending part of duodenum
• Varying degrees of obstruction
• Duodenum may be dilated proximal to stenosis

Other Information About Annular Pancreas

Etiology:

• Generally unknown
• Linked to Down syndrome

Epidemiology:

• AP is a congenital defect
• Bimodal: typically diagnosed in newborns and patients in 3rd-6th decades of life

Presentation:

• Typically asymptomatic
• In children:
  • Vomiting
  • Bloating
  • Feeding intolerance

Prognosis:

• Symptomatic patients can be treated with surgery