Figure 2.

Hepatic angiomyolipoma in a 35-year-old woman. (a) Baseline ultrasound scan shows a mixed echogenic lesion (arrow) 5.3 cm in diameter in segment 7 of the liver. An anechoic portion is found in the lesion. (b) In the arterial phase of contrast-enhanced ultrasound, the lesion (arrow) shows heterogeneous hyperenhancement 11 s after contrast agent injection. The lesion (arrow) shows isoenhancement in the (c) portal phase (44 s after contrast agent injection) and (d) late phase (136 s after contrast agent injection).