【摘要】 目的 探讨软组织恶性纤维组织细胞瘤的CT/MRI特征表现和诊断价值。方法 对经病理证实的25例恶性纤维组织细胞瘤影像学特征进行分析,包括肿块大小、部位、信号及密度均匀性、境界、毗邻血管神经包绕及边缘形态特征。同时分析脂肪肉瘤和纤维肉瘤各20例的影像学特征,两两比较,统计学方法采用χ~2检验。结果 恶性纤维组织细胞瘤与20例脂肪肉瘤对比分析发现,肿瘤边缘情况、肿瘤内囊变与坏死信号方面两者存在统计学差异(P<0.05)。恶性纤维组织细胞瘤与20例纤维肉瘤对比分析中,两者CT/MRI各项特征表现均无差异(P>0.05)。结论 肿瘤边缘情况以及肿瘤的囊变与坏死信号程度在软组织肿瘤诊断中具有一定的鉴别诊断价值,结合其他因素的分析有助于提高恶性纤维组织细胞瘤诊断水平。更多还原

【Abstract】 Objective To investigate the value of CT/MRI in the diagnosis of malignant fibrous histocytoma(MFH).Methods The imaging characteristics of 25 cases with MFH,20 cases with liposarcomas and 20 cases with fibrosarcoma proved by operations and pathology were comparatively analysed.The analyzed features included the size,location,density or signal intensity,border and encapsulation of adjacent neurovascular bundle of the tumors.Results The results showed that the tumor’s borders,and necrosis or cystic degeneration in tumor were of statistically significant(P<0.05) between malignant fibrous histocytoma and liposarcom,but there were no statistically differences between malignant fibrous histocytoma and fibrosarcoma in CT/MRI manifestations(P>0.05).Conclusion This study shows that the tumor’s border and necrosis or cystic degeneration in tumor are helpful for diagnosis of the imaging of soft tissue sarcoma.MRI in combination with clinical data can achieve a better diagnosis of MFH.更多还原