fig7

Figure 7. SBRT for residual tumor after RFA in a 66-year-old man. A: Axial and sagittal MRI images approximately 1.5 months after RFA showed a hepatic lesion with a residual cavity and viable tumor (arrowhead) close to the inferior vena cava; B: the patient underwent SBRT with a dose of 50 Gy in 10 fractions for the residual tumor; C-E: MRI images obtained 6 months (C), 1 year (D), and 4 years (E) after SBRT illustrate gradual shrinkage and eventual disappearance of the tumor. SBRT: stereotactic body radiation therapy; RFA: radiofrequency ablation; MRI: magnetic resonance imaging