99mTc-MDP Bone Scan and 18F-FDG PET/CT Imaging of Multiple Extraskeletal Osteosarcomas

摘要

Extraskeletal osteosarcomas are uncommon entities in clinical practice, which account for 1% to 2% of all soft tissue sarcomas. We here reported a case of multiple extraskeletal osteosarcomas and nuclear medicine imaging findings of this disease in Tc-99m-MDP bone scan as well as F-18-FDG PET/CT.