Radionuclide detection of multiple soft tissue metastases of osteosarcoma masquerading as bone metastasis.

Objective: The aim of this work was to report an unusual case of multiple soft tissue metastases of osteosarcoma detected using bone scan and confirmed by CT scan.

Clinical Presentation And Intervention: A 15-year-old patient with a history of osteogenic sarcoma presented with fatigue and loss of appetite in addition to a painless swelling of the distal left lower extremity. Bone scan and chest CT scan were performed for restaging purposes.