Biliary (choledocal) cyst

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  • Congenital or acquired dilatation of the biliary tree
  • Single or multiple
  • Intra or extra hepatic
  • MCC: Single, extrahepatic

Presentation

  • Abdominal pain
  • Mass
  • Jaundice (obstructive)

Complications

  • Cholangiocarcinoma
  • Cholangitis
  • Pancreatitis (older children)

Diagnosis

  • US
  • ERCP if obstruction is suspected

Treatment

Surgery

Differential diagnosis

  • Biliary atresia (early infancy, no mass)
  • Cholangitis (fever)