Biliary cystadenoma

Case contributed by Dr Abdallah Khateeb

Presentation

RUQ discomfort / fullness and obstructive jaundice.

Patient Data

Age: 45 years old
Gender: Female
Modality: CT

A well defined large solitary unilocular cystic mass at the hepatic interlobar region, with enhancing thin smooth wall (fibrous capsule) and hairline internal septations. The content is homogenous and of low density (HU = 0-10).

No calcification. No soft tissue component or papillary projections. No definite signs of invasion.

Mass effect on the surrounding organs / structures is also obvious, with mild intrahepatic biliary dilatation.

Case Discussion

Biliary cystadenoma is an uncommon benign tumor of the bile ducts. Being uncommon and pre-malignant, and since radiological differentiation from the more sinister biliary cystadenocarcinoma is unreliable, surgical excision is usually done.

Cystadenomas are usually intrahepatic lesions, and more commonly involve the right lobe. 

Histopathology proved biliary cystadenoma.

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Case Information

rID: 44742
Case created: 3rd May 2016
Last edited: 6th Oct 2016
Inclusion in quiz mode: Included

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