Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.
From the case:
Focal nodular hyperplasia - very large
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A large lesion in the right lobe, heterogeneously enhancing in the arterial phase, with more homogenous enhancement in the portal venous phase. The central part of the lesion appears to be non enhancing.
Case Discussion
Focal nodular hyperplasia (FNH) confirmed at histology.