Fig. 3.

Focal nodular hyperplasia. a Almost isoechoic FLL, well delineated and relatively homogeneous. b, c Highly vascularized lesion with central arterial blood supply seen on color Doppler US. d, e CEUS showing early arterial star-like centrifugal enhancement with rapid and persistent homogeneous filling. f T1-weighted MR image showing a slightly hypointense homogeneous FLL. g FLL with a slightly hyperintense appearance on the T2-weighted MRI sequence and a more hyperintense central scar. h There is no fat suppression. i Homogeneous arterial enhancement (except for the central scar which remains unenhanced). j There is no washout during the portal venous phase.