Scattered and rapid intrahepatic recurrences after radio frequency ablation for hepatocellular carcinoma

Figure 1 CT images of scattered recurrences after RFA. A: Recurrences around the ablated tumor after RFA (case 10 in Table 2); B: Multiple recurrences scattered over the whole liver after RFA (case 6 in Table 2). The white arrows indicate the ablated area without enhancement by contrast medium, and the black arrowheads indicate scattered recurrence with enhancement.

Figure 2 Angiographic images of scattered recurrences after RFA, which were treated by TACE in most of the cases. A: Multiple recurrences were located surrounding the ablated tumor (case 8 in Table 2). B: Multiple recurrences were scattered in the whole liver (case 9 in Table 2). In both patterns, recurrent tumors were almost equal in size.