Biliary cystadenoma

  • Biliary cystadenoma is a relatively uncommon entity, often masking as a hepatic cyst.
  • Though rare, biliary cystadenoma is thought to have malignant potential, occasionally evolving into biliary cystadenocarcinoma.
  • The lesion tends to be managed only if symptomatic (surgical resection if there are complications eg rupture/bleeding)
  • Radiographic feature
    – Biliary cystadenoma may have internal septations or a small amount of complexity
    – The greater the complexity, the higher suspicion should be raised for biliary cystadenocarcinoma transformation
  • Recurrence is common after resection.
  • Ddx include simple hepatic cyst, hydatid cyst and hepatic abscess.


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