Figure 3c: Transverse CT scans in 52-year-old man after RF ablation for metastasis to liver abutting the diaphragm. (a) At 1 day after ablation, adjacent diaphragmatic thickening is seen. (b) At 1 month after ablation, focal nodular diaphragmatic thickening (arrowhead) is seen. (c) At 11 months after ablation, minimal remaining diaphragmatic thickening can be seen.