Fig. 3

Appearance of FNH with hepatobiliary-specific contrast (gadoxetate) and a routine extracellular agent (gadolinium). (a) Axial T2W MRI shows iso- to mildly hyperintense lesions in segment 4 of the left lobe of the liver (arrow). (b) Axial post-contrast MRI with gadoxetate shows intense enhancement of the lesions in the arterial phase with a non-enhancing central scar (arrow). (c) Axial post-contrast MRI in the 20-min hepatobiliary phase shows a peripheral ring of hyperintensity (arrow) with central non-enhancement (asterisk). Follow-up MRI with gadolinium after 6 months shows an enhancing lesion with a non-enhancing scar (arrow) in the arterial phase (d) and persistent enhancement in the portal venous (e) and delayed phases (f) with delayed enhancement of the central scar (arrow)