Case 221:   Biliary Cystadenoma

Diagnostic Category:

Clinical Presentation:

40 year old woman with an incidentally discovered lesion in the liver on CT done for lower abdominal pain.

MR: Typical, with enhancing septations

Imaging Findings:

MR demonstrates biliary cystadenoma in segment 4 with typical thin enhancing septations. Compare to non-enhancing membranes in cystic echinococcosis.