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颅内孤立性纤维瘤的MRI表现及误诊分析 被引量:6

MRI diagnosis of intracranial solitary fibrous tumors and the analysis of misdiagnosis
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摘要 目的:分析颅内原发性孤立性纤维瘤的MRI表现,提高对颅内孤立性纤维瘤的认识及诊断水平。材料与方法:回顾性分析经手术病理证实的3例颅内孤立性纤维瘤患者的临床、MRI资料及病理结果。结果:3例患者年龄为38~52岁,平均44.7岁。1例病灶位于延髓前方,1例位于右侧顶枕部,1例位于松果体区。病灶边界均清楚,但信号差异较大,2例呈等T1等T2信号,1例呈长T1长T2信号,内可见条索样T2WI等或低信号影。FLAIR上均呈高信号,增强扫描均呈明显不均匀强化,病灶内小片状囊变区(1例)及条索状T2WI低信号区(1例)明显强化,且囊变区强化较实质明显。3例均误诊,2例误诊为脑膜瘤,1例误诊为生殖细胞瘤。病理表现为镜下瘤细胞呈梭形,瘤细胞见纤维组织增生并胶原化。免疫组化:Vim(+)、CD34(+)、Bcl-2(+)。结论:颅内孤立性纤维瘤罕见,易误诊,其表现形式多数与脑膜瘤、血管周细胞瘤类似,MRI表现有一定的特征性,确诊需依靠组织病理及免疫组化检查。
出处 《中国临床医学影像杂志》 CAS 2014年第5期350-352,共3页 Journal of China Clinic Medical Imaging
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参考文献10

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二级参考文献29

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