Fig. 4.

Biopsy-proven FNH with intralesional steatosis in a 46-year-old female. (a) Axial T2W MRI shows an isointense lesion (long arrow) in the left lobe of the liver with a faint hyperintense central scar (short arrow). Axial T1 in-phase (b) and out-of-phase (c) MRIs show a drop in signal in the out-of-phase images representing intralesional lipid (arrow). Axial post-contrast MRI shows an enhancing lesion (arrow) in the arterial phase (d) becoming iso- to mildly hypointense in the portal venous (e) and delayed phases (f) with delayed enhancement of the central scar (arrow). Arrowheads denote transient oedema/enhancement