Figure 9. (a) A contrast enhanced CT of the liver in a patient who had received laser therapy to a solitary right lobe metastasis showed a low density laser defect. (b) and (c) T1W images before and after intravenous Gd-DTPA show two faint rounded enhancing lesions in the left lobe. (d) A PET-FDG scan confirms multiple high uptake metastases.