Liver: a well-defined oval mass lesion is noted at the posterior subcapsular aspect of segment V/VI measure (34 x 25 x2 5mm, TRA X AP x CC) on the non-contrast series. The lesion is iso-attenuating but shows homogeneous arterial enhancement except for the central scar which remains hypoattenuating, with no enlarged central artery seen. In the portal venous phase, the lesion becomes iso-attenuating to the liver, with no associated fat, calcification, or hemorrhage. Features are consistent with focal nodular hyperplasia.