目的 分析软骨母细胞瘤直接数 字化X射线摄影系统(DR)、电子计算机断 层扫描(CT)、及磁共振成像(MRI)表现及 诊断价值。方法 回顾性分析2014年1月至 2015年12月在我院就诊并进行手术治疗 的软骨母细胞瘤的39例患者的影像学资 料，所有患者均行DR、CT以及MRI检查， 比较三种诊断方式对软骨细胞瘤的临床 诊断价值。结果 CT检查对边界清晰伴 边缘硬化和病灶内钙化的检出率分别为 61.54%和66.67%较DR(38.46%、33.33%) 和MRI(35.89%、41.03%)显著较高(P ＜0.05)；MRI检查对病变周边关节积液的 检出率为30.77%较DR检查5.13%和CT检查 2.56%显著较高(P＜0.05)。结论 良性软 骨母细胞瘤在影像学的表现上多具有特征 性，DR、CT和MRI诊断软骨母细胞瘤各有 其优势和劣势，在进行临床诊断时将三种 方式相结合，能大大提高诊断的准确率， 减少误诊的发生。

Objective To analyze the findings of direct digital X-ray radiography (DR), computerized tomography (CT) and magnetic resonance imaging (MRI) in the diagnosis of chondroblastoma. Methods The imaging data of 39 patients with chondroblastoma who underwent operation in our hospital during January 2014 to December 2015 were analyzed retrospectively. All patients underwent DR, CT and MRI examination, and clinical value of the three methods in the diagnosis of chondroblastoma was compared. Results The detection rates of CT to clear boundary with border sclerosis and calcification in lesions (61.54%, 66.67%) were significantly higher than the detection rates of DR (38.46%, 33.33%) and MRI (35.89%, 41.03%) (P<0.05). The detection rate of MRI to joint effusion surrounding lesions (30.77%) was significantly higher than DR (5.13%) and CT (2.56%) (P<0.05). Conclusion The imaging findings of benign chondroblastomas are distinctive. DR, CT and MRI have their own advantages and disadvantages in the diagnosis of chondroblastomas. The combined diagnosis of the three methods can greatly improve the diagnostic accuracy and reduce misdiagnosis.