目的：评价CT和MRI在骨纤维肉瘤中的诊断价值。
Objective:To evaluate CT and MRI in the diagnosis of fibrosarcoma of bone.
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.
因此我们的研究与先前的研究一致，GNAS的突变在纤维性结构不良中有高度特异性，而在骨旁骨肉瘤和其它低级别骨肉瘤中即使有GNAS突变、也是很少的。
Our findings therefore support prior observations that GNAS mutations are highly specific for fibrous dysplasia and occur rarely, if ever, in parosteal and other low-grade osteosarcomas.
因此我们的研究与先前的研究一致，GNAS的突变在纤维性结构不良中有高度特异性，而在骨旁骨肉瘤和其它低级别骨肉瘤中即使有GNAS突变、也是很少的。
Our findings therefore support prior observations that GNAS mutations are highly specific for fibrous dysplasia and occur rarely, if ever, in parosteal and other low-grade osteosarcomas.
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