Figure 4a. Images in two patients with abnormal liver parenchyma. (a) Transverse US image in a 20-year-old man involved in a motor vehicle accident shows a hyperechoic lesion (arrows) in the right hepatic lobe. (b) The lesion was confirmed at transverse contrast-enhanced CT to be a laceration (arrows). (c) Transverse US image in a 37-year-old man who experienced an assault shows an echogenic lesion (arrows) near the liver dome. (d) Portal venous phase transverse CT image reveals a lesion (arrows) in the liver. (e) Delayed transverse CT image obtained with intravenously administered contrast material shows the corresponding liver lesion (arrows) with enhancement characteristics comparable with those of hemangioma.