Name two ways fatty infiltration can simulate a lesion in the liver on CT

Focal fatty infiltration: The low-density region emulates a low-attenuation metastasis. Fat often occurs adjacent to the falciform ligament; don’t be fooled.
Fatty sparing: In a fatty infiltrated liver, if part is spared, the normal liver may have the appearance of a hyperdense mass when compared with the fatty infiltrated liver.