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(a) Computed tomography (CT) before treatment shows the right lung cancer invading the second to third rib and vertebrae. (b) CT after multimodal treatments (CRT + ICI) reveals partial response (PD) of the main tumor. (c) Preoperative CT scan shows the regrowth of main tumor. The yellow arrow indicates the main tumor. (d) 18F‐FDG‐ PET scan shows high uptake of regrowth of the main tumor, but no uptake in the vertebrae
