结果： X线平片清楚显示多中心骨肉瘤病灶， 放射性核素显像骨扫描可见肿瘤灶核素浓集。
Results The multifocal of osteosarcomatosis were clearly depicted by X- ray plain film, and the radionuclide concentration of tumor foci could be seen on radionuclide images.
方法：回顾性分析经手术病理证实的7例骨纤维肉瘤的平片、CT和MRI表现。
Methods: The features of ct and MRI of 7 cases of fibrosarcoma of bone proved pathologically were retrospectively reviewed.
骨肉瘤23例，尤文肉瘤6例，软骨肉瘤2例，侵袭性骨母细胞瘤2例。
There were 23 osteosarcomas, 6 Ewing sarcomas, 2 chondrosarcomas, and 2 invasive osteoblastomas.
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