Among them, there were 7 osteosarcomas, 5 giant cell tumors, 1 malignant fibrous histocytoma, 1 chondrosarcoma and 1 osteoblastoma.

• 其中骨肉瘤7例，骨巨细胞瘤5例，骨恶性纤维组织细胞瘤、软骨肉瘤及骨母细胞瘤各1例。