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Fig. 2 —33-year-old woman with two hyperenhancing liver masses. Axial
CT image of liver during hepatic artery phase shows two hyperenhancing masses:
71 x 55 mm mass in right lobe (black arrow) and 28 x 26
mm mass in left lobe (white arrow). Larger mass contains central scar
(arrowhead) and does not qualify as transient hepatic attenuating
mass. Smaller mass is homogeneous and qualifies as transient hepatic
attenuating mass (high density at periphery of mass is due to arteriovenous
shunting). Both masses faded to isoattenuation on portal venous phase (not
shown) and were stable for 60 months, indicating benignity (presumed
diagnosis, focal nodular hyperplasia).
