骨巨细胞瘤多层螺旋CT与MRI诊断探讨

Multi - slice spiral CT and MRI diagnosis of giant cell tumor of bone

目的探讨多层螺旋CT与MRI对骨巨细胞瘤的诊断价值。方法对41例病理证实的骨巨细胞瘤多层螺旋CT及MRI资料进行回顾性分析。结果在多层螺旋CT上，骨巨细胞瘤表现为骨端偏心溶骨性骨质破坏区，多数有不同程度膨胀性改变，肿瘤内可见骨嵴形成。在MRI上，骨巨细胞瘤在T1WI上呈低及中等信号，在T2WI上呈低、中及高混杂信号，合并动脉瘤样骨囊肿可见囊性信号区。结论多层螺旋CT及MRI对骨巨细胞瘤诊断有重要价值。

Objective To discuss the diagnostic value of multi - slice spiral CT and MRI in giant cell tumor of bone. Methods We reviewed multi - slice spiral CT and MRI features of 41 cases of giant cell tumor which had been confirmed by pathology. Results On muhi - slice spiral CT,the giant cell tumors were presented eccentric osteolytic destruction of bone at the end of bone,the various expansile changes and trabeculation can be seen in many eases. On MRI,the giant cell tumors were presented intermediate or low signals on T1WI and miscellaneous signals on T2WI. The lesions with aneurysmal bone cyst can be seen cystic components on MRI. Conclusion CT and MRI are very valuable in diagnosis of giant cell tumor of bone.