Figure 3. Preoperative contrast-enhanced computed tomography (CT) images (A–C) and positron emission tomography (PET) images (D–G) of the spine indicating multiple mass lesion at C7–T5 level. (A) A right-sagittal CT image showing vertebral body osteolysis and partly enhanced mass lesion at T3 and T4. (B, C) Axial CT images showing partly enhanced mass lesion invading rib, vertebrae, and spinal canal at T3 (B) and T4 (C). (D) A coronal PET image showing 18-labeled fluorodeoxyglucose accumulation. (E) A sagittal PET image showing 18-labeled fluorodeoxyglucose accumulation. (F, G) Axial PET images showing 18-labeled fluorodeoxyglucose accumulation at T3 (F) and T4 (G). White arrows indicate the tumor.