【摘要】 目的 探讨影像学检查对软骨黏液样纤维瘤的诊断价值。方法 对18例病理证实的软骨黏液样纤维瘤影像学资料进行回顾性分析,其中行X线检查18例,CT检查6例,MRI检查6例,另有4例同时行CT及MRI检查。结果 18例中,15例发生于长骨干骺端,另外骶骨、肋骨及颅底各1例。X线及CT病变表现为偏心囊性骨质破坏区,有硬化边,骨皮质膨胀变薄,CT显示病变内细小钙化灶5例。MRI表现为病变信号不均匀,在T₁WI上呈低及中等信号,在T₂WI以高及中等信号为主,亦可见部分低信号,行Gd-DTPA增强扫描后病灶实性部分呈不均匀强化,囊性部分强化不明显。结论 软骨黏液样纤维瘤的X线、CT与MRI影像表现均有特征性,其综合影像对诊断与鉴别诊断有重要价值。更多还原

【Abstract】 Objective To approach the imaging value in diagnosing chondromyxoid fibroma.Methods Imaging features of 18 cases of chondromyxoid fibroma which had been confirmed by pathology were retrospectively analysed.Imaging examinations included radiographs（n=18）,CT（n=6）,MRI（n=6）,CT and MRI simultaneously（n=4）.Results Of 18 cases,the lesions were located at metaphysis of long bone in 15,at sacrum in 1,at rib in 1 and at base of skull in 1.On radiographs and CT,the chondromyxoid fibromas were presented eccentric cystoid destruction of bone with sclerotic border,cortical bones were expansile changes.CT showed small calcifications in the lesions in 5 cases.On MRI,the lesions appeared as unhomogeneous signal,intensity,intermediate or low signal intensity on T₁ WI,high and intermediate signal intensity on T₂ WI,low signal intensity could be seen on T₂ WI in some cases.On enhanced MRI,the solid components of the lesions presented inhomogeneous enhancement and cystic components no obvious enhancement.Conclusion Chondromyxoid fibroma has characteristics on radiograph,CT and MRI,imaging is very valuable in diagnosis and differential diagnosis of this tumor.更多还原