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![Third time re-irradiation of liver metastasis with robotic radiosurgery: a case series](https://image.oaes.cc/ce6ffbe3-b98b-4446-9b7a-684afcb0f16e/3143.fig.2.jpg)
Figure 2. Patient 1: PET-CT scan. A: Sep 2014: 2 cm × 1.6 cm mass in seg VII of liver; B: Sep 2016: 3 cm × 2.4 cm mass in seg VIII of liver; C: March 2018: 2 cm × 1.5 cm mass in seg VI of liver; D: June 2018: PET scan showing complete resolution of mass lesions