Table 3.

Typical enhanced-ultrasound pattern in malignant focal liver lesions

	Arterial phase	Portal phase	Late phase
Hepatocellular carcinoma	Hyperenhanced due to its arterial vascularization	Fast wash-out leaving an iso or hypoenhanced lesion	Hypoenhanced
Cholangiocarcinoma	Hyperenhanced in the border	Iso or hypoenhanced	Hypoenhanced
Hypervascular metastasis	Hyperenhanced, usually starting in the margin: ring sign	Iso or hypoenhanced	Hypoenhanced
Hypovascular metastasis	Hypoenhanced	Hypoenhanced	Hypoenhanced