Figure 5a. Hepatic artery pseudoaneurysm in a 58-year-old woman with worsening results on liver function tests 23 days after orthotopic liver transplantation. (a) Gray-scale US image obtained through the porta hepatis shows a focal cystic structure (arrow) alongside the hepatic artery. (b) Color Doppler image shows that the cystic structure (arrow) is vascular, an appearance consistent with a pseudoaneurysm. (c) Color and spectral Doppler image of the right intrahepatic artery shows a tardus-parvus waveform. (d) Corresponding contrast-enhanced CT image shows the pseudoaneurysm (arrow).