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Figure 2. 49-year-old woman with a histology-proven hepatic angiomyolipoma. (a) Contrast-enhanced harmonic power Doppler ultrasound revealed a hypervascular mass with strong tumour parenchymal stain in the posterior superior segment of the right liver lobe. An efferent vessel that ran from inside the tumour via the right hepatic vein to the direction of inferior vena cava (IVC) was seen (arrow). (b) On CT during angiography, a hyperdense mass with afferent (white arrow) and efferent (black arrow) vessels was clearly demonstrated. The efferent vessel was the hepatic vein that flowed from the tumour into the IVC through right hepatic vein, consistent with the finding revealed by contrast-enhanced harmonic power Doppler.
