Figure 1a:

Graphs show that RF ablation (RFA) of normal liver increases growth of distant subcutaneous tumors compared with sham treatment. SQ = subcutaneous. (a) Curves for R3230 tumors demonstrate same rate of growth for all groups before treatment. After hepatic RF ablation (day 0), growth rate of distant tumors is significantly greater at 7 days such that end tumor diameter is significantly greater than that with sham treatment (P < .01). (b) Curves for MATBIII tumors show that hepatic RF ablation at day 0 stimulated distant subcutaneous tumor growth such that end tumor diameter 3½ days after ablation was significantly greater than that with sham treatment (P = .001).