Fig. 11

A 43-year-old female with typical hepatocyte nuclear factor 1alpha (HNF-1alpha)-inactivated hepatocellular adenoma. Axial T2W HASTE image (a) demonstrates a well-circumscribed mass in the lateral segment, which is only minimally hyperintense to the adjacent liver parenchyma (white arrow). There is a focal region of more increased T2W signal centrally (arrowhead). Axial in (b) and opposed (c) phase T1W dual echo GRE images demonstrate homogeneous loss of signal intensity within the lesion (white arrows) but no SI drop in the adjacent liver. Note misregistration between (b) and (c) as images were acquired in separate breath-holds. Axial fat-suppressed T1W GRE images after the injection of gadoxetic acid during the early arterial (d), portal venous (e) and 20-min hepatobiliary (f) phases demonstrate heterogeneous arterial enhancement with lack of persistent enhancement on portal venous phase and no uptake of gadoxetic acid during the hepatobiliary phase (arrows)