Fig. 3

A 67 years old male patient with biopsy-proven right distal femoral osteosarcoma. He was referred after an above-knee amputation for post-operative assessment of any residual tumors. A MIP image show multiple areas of increased FDG uptake at the operative bed and other sites all over the surveyed body denoting local recurrence with distant metastatic lesions. B, C, D Axial CT, and E, F, G Axial fused PET/CT images show multiple metabolically active FDG avid osseous deposits with SUVmax ~ up to 19.2 with no corresponding significant CT structural changes