fig5

Figure 5. Imaging appearance of “fat in mass” in hepatocellular carcinoma of the left liver lobe. Unenhanced CT (A) shows a heterogeneous hypoattenuating appearance of the left portion of the lesion (A - arrows), which is hypoattenuating compared to the liver and consistent with intra-tumoral fat. The lesion is isointense to the liver on MRI inphase T1 image (B), and MRI T1 outofphase image (C) shows a diffuse drop of the signal intensity within the lesion(C - asterisks). CT: Computed tomography; MRI: magnetic resonance imaging.