Radiofrequency ablation of hepatocellular carcinoma in difficult locations: Strategies and long-term outcomes

Figure 3 A 71-year-old man had intrahepatic recurrence after resection of hepatocellular carcinoma. A: Subcostal ultrasound shows a 1.2-cm tumor (arrow) in segment III; B: Contrast-enhanced ultrasound shows the tumor (arrow) peripherally enhanced and that its invasive range increased to 2.2 cm. The tumor is shown to be very close to the gastrointestinal (GI) tract (arrow head); C: Subcostal ultrasound shows an ultrasound-guided tiny needle puncture though the liver to the space between the liver and the bowel. After injection of 100 mL of fluid, the tumor is separated from the nearby GI tract; D: Subcostal ultrasound shows that two bipolar electrodes are placed parallel to the GI tract.