Contrast-enhanced ultrasound manifestations of synchronous combined hepatocellular-cholangiocarcinoma and hepatocellular carcinoma: A case report

Figure 5 A recurrent tumor in liver S1 was found by contrast enhanced imaging modalities 7 mo after operation. A: The nodule showed mild annular enhancement on contrast enhanced computed tomography; B and C: The lesion manifested peripherial hyperenhancement (B, arrow) in the arterial phase and hypoenhancement in the portal venous phase (C, arrow) on contrast enhanced ultraound.