Case 290:   Focal Nodular Hyperplasia (FNH)

Diagnostic Category:

Clinical Presentation:

43 year old man with multiple liver lesions found on US.

CT: Central scar

Imaging Findings:

Multiphase CT shows typical FNH.  Arterial images shows a hypervascular lesion within segment 4B.  It has a central hypodense scar.  Lesion becomes isodense to liver parenchyma in the portal venous and equilibrium phase.