Fig. 6

Rim-enhancing masses in a 65-year-old woman with PHL. Axial T2-weighted fat-saturated MR image showing a well-defined lobulated hyperintense lesion (solid arrow in a) with peripheral diffusion restriction (b). Multiple other similar but smaller nodules (interrupted arrows) are also seen. Post contrast administration, rim-enhancement of the dominant lesion is seen on the arterial phase image (c) with partial progressive centripetal fill-in of contrast on the subsequent portal venous (d) and equilibrium phase images (e). On the 1-hr delayed hepatobiliary phase, the central portion of the tumor shows accumulation of contrast. The other nodules also demonstrate similar enhancement pattern