颅内孤立性纤维瘤的CT和MR表现

发布时间：2018-01-24 05:34

本文关键词： 脑孤立性纤维瘤体层摄影术 X线计算机磁共振成像　出处：《中国医学计算机成像杂志》2015年03期 　论文类型：期刊论文

【摘要】：目的:探讨颅内孤立性纤维瘤(ISFT)的CT和MR表现特征,提高对其影像表现的认识。方法:回顾性分析经手术病理证实的4例ISFT临床及影像学资料(位置、形态、大小、密度或信号强度、强化方式及程度、邻近颅骨改变)。结果:ISFT最常见症状是头痛头晕(3/4),4个病灶皆起源于硬脑膜,其中幕上2个,幕下1个,跨天幕生长1个,分叶状3个,类圆形1个,最大径3~8.5cm,平均5.6cm,CT平扫呈不均匀稍高及高密度,无明显钙化;MR T1WI等稍高信号,T2WI混杂等高信号,增强后明显不均匀强化(3/4),1例出现典型"阴阳征",2例出现"脑膜尾征",邻近颅骨侵蚀性改变2例。结论:当颅内脑外肿瘤T2WI信号不均匀,增强后明显不均匀强化,尤其出现典型"阴阳征"及邻近颅骨侵蚀性改变时应考虑到ISFT的可能性。
[Abstract]:Objective: to investigate the CT and Mr features of intracranial solitary fibroma (ISFT). Methods: the clinical and imaging data (location, shape, size, density or signal intensity, enhancement mode and degree) of 4 cases of ISFT proved by operation and pathology were analyzed retrospectively. Results the most common symptom was headache, dizziness and dizziness 3 / 4, 4 lesions originated from dura mater, including 2 supratentorial, 1 subtentorial, 1 transatentorial growth and 3 lobular. There was a round shape with a maximum diameter of 3 ~ 8.5 cm, with an average of 5.6 cm ~ (-1). The CT plain scan showed a slightly higher and higher density of heterogeneity and no obvious calcification. Mr T1WI showed mixed isointense signal intensity on T2WI. After enhancement, 1 case showed typical "yin-yang sign" and "meningeal tail sign" in 2 cases. Conclusion: the signal intensity of T2WI in intracranial and extracranial tumors is not uniform, and the signal intensity is not even after enhancement. In particular, the possibility of ISFT should be taken into account when typical "Yin and Yang" sign and adjacent skull erosion change occur.
【作者单位】：复旦大学附属中山医院青浦分院放射科;复旦大学附属中山医院病理科;复旦大学附属中山医院放射科;
【分类号】：R445.2;R730.44;R739.4
【正文快照】： Chin Comput Med Imag,2015,21:215-2181 Department of Radiology,Qingpu branch of Zhongshan hospital affiliatedto Fudan University2 Depar tment of Pathology,Zhongshan hospital af f iliated to FudanUniversity3 Depar tment of Radiology,Zhongshan hospital af f

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