Adjuvant percutaneous radiofrequency ablation of feeding artery of hepatocellular carcinoma before treatment

Figure 4 A 72-year-old man with 10 years of hepatitis B was detected with HCC during routine examination. This patient could not tolerate most of the therapies because of old age and poor general condition. A: Contrast-enhanced CT showed a 3.7 cm × 3.5 cm mass and the feeding vessel (arrow); B: Contrast-enhanced US 2 mo later showed the tumor enlarged to a size of 5.2 cm × 4.2 cm; C: CDFI showed feeding vessels in and around the tumor with a flow velocity of 34.5 cm/s. PAA was performed under CDFI guidance; D: During PAA, a small amount of subcapsular hemorrhage (0.5 cm in depth) was noted; E: The amount of hemorrhage gradually reduced (arrow) after PAA finished; F: Contrast-enhanced CT (24 h after treatment) showed a necrotic area covering the tumor. A small amount of subcapsular hemorrhage was still be noted.