Focal liver lesion: nonlinear contrast-enhanced ultrasound imaging

Enhancement Patterns of Malignant Focal Lesions

Hyper-vascular Metastases:

  • Typical features:
    • Arterial phase: hyper-enhancing, complete;
    • Portal vein phase: hypo-enhancing;
    • Parenchymal phase: hypo-, lack of enhancement.
  • Additional features:
    • Arterial phase: "chaotic" vessels.

Case A-10.2

Multiple liver lesions in segment 2-3 and 5, 6-7, solid iso-hyperechoic with intralesional vessels at color-power Doppler. In arterial phase complete early enhancement. In portal and late parenchymal phase it is found lack of enhancement. C.R.: hyper-vascular metastases