Contrast-enhanced ultrasound in the diagnosis of nodules in liver cirrhosis

Figure 2 A 63-year-old man with moderately-differentiated hepatocellular carcinoma. A: Computed tomography scan in the arterial phase shows a small exophytic nodule (arrow) which shows similar attenuation to the liver; B: The nodule (arrow) is slightly hypoattenuating to the liver in the delayed phase; C: Contrast-enhanced ultrasound (CEUS) in the arterial phase clearly demonstrates hypervascularity of the nodule (arrow); D: CEUS in the portal venous phase shows washout of the nodule (arrow).