Intrahepatic biliary cystadenoma causing luminal common bile duct obstruction.

Background: Biliary cystadenomas are rare cystic tumours that arise in the liver or less frequently in the extrahepatic biliary system. They are commoner in middle-aged women, their most favoured site is the right hepatic lobe.

Methods: Case report and review of the literature.

Results: We present only the second case of an intrahepatic cystadenoma causing luminal obstruction of the common bile duct. Clinical presentation is often non-specific and can prove to be a diagnostic challenge.

Conclusion: Wide local excision of biliary cystadenomas is recommended, with regular radiological follow-up.