fig2

Figure 2. 76-year-old male, hepatitis C cirrhosis, MR images. On pretreatment images, a 4.3 cm arterial phase hyperenhancing (asterisk) observation with portal venous phase washout (arrows) in the right lobe is consistent with HCC (LR-5). Follow-up images 6 months after Y-90 radioembolization shows a larger appearance of the mass due to treatment changes. The lack of arterial phase hyperenhancement (asterisk) and irregular progressive enhancement on portal venous phase (black arrows) are consistent with post-treatment changes (LR-TR Nonviable).