Magnetic resonance imaging ancillary features used in Liver Imaging Reporting and Data System: An illustrative review

Figure 9 Intra-lesional fat in early hepatocellular carcinoma. Dual echo in-phase (A) and out-of-phase (B) GRE T1 weighted images, and post-contrast fat-suppressed 3D-GRE T1-weighted images during late hepatic arterial (C) and delayed phase (D). A nodule is seen in the left hepatic lobe, which demonstrates intrinsic mild increased T1 signal on the in-phase images (arrow, A) and loss of signal on the out-of-phase images (arrow, B). This nodule shows heterogeneous mildly arterial hyperenhancement (arrow, C) and no washout is appreciable (arrow, D).