肥厚性硬脊膜炎的MRI表现

发布时间：2018-06-02 22:58

本文选题：肥厚性硬脑膜炎 + 脊柱　；参考：《中国医学影像技术》2015年10期

【摘要】：目的观察肥厚性硬脊膜炎(HSP)的MRI表现。方法回顾性分析12例HSP患者的影像资料,其中7例经临床及影像学检查确诊,5例经病理证实。结果 12例HSP患者中,MR显示11例位于颈胸椎的硬脊膜增厚范围为10个以上椎体水平,1例位于胸腰椎的硬脊膜增厚累及范围为5个椎体水平;6例表现为背侧、2例为腹侧硬膜增厚,4例背侧及腹侧硬膜均增厚。2例增厚的硬膜呈结节样,1例合并硬膜外肿物形成,5例合并硬膜囊背侧脂肪增多。增厚的硬膜T2WI均呈低信号,4例T1WI呈等信号,8例T1WI呈低信号。10例增强扫描患者中,4例明显强化,1例中等强化,5例未见强化。结论 HSP以颈胸椎背侧或腹侧硬膜广泛增厚为特点,部分合并硬膜外脂肪增多;增厚的硬膜呈结节样或条带状,少数可合并硬膜外肿物形成;T2WI呈特征性低信号。
[Abstract]:Objective to observe the MRI findings of hypertrophic epidural meningitis (HSPs). Methods the imaging data of 12 patients with HSP were analyzed retrospectively. Among them, 7 cases were confirmed by clinical and imaging examination and 5 cases were confirmed by pathology. Results in 12 cases of HSP, Mr imaging showed that the thickening range of dural thickening in 11 cases of cervical and thoracic vertebrae was more than 10 vertebrae and 1 case was located in thoracolumbar vertebrae. 6 cases showed dorsal spinal cord thickening, 6 cases showed dorsal spinal cord thickening and 2 cases had dorsal spinal cord thickening. Ventral dural thickening was seen in 4 cases, both dorsal and ventral dura were thickened in 2 cases. The thickened dura mater was nodular in 1 case with epidural mass formation in 5 cases and increased dorsal fat in dural sac in 5 cases. All the thickened dura T2WI showed low signal intensity in 4 cases, T1WI in 8 cases, low signal intensity in 8 cases. Among 10 cases of enhanced scan, 4 cases had obvious enhancement and 1 case had moderate enhancement. 5 cases had no enhancement. Conclusion HSP is characterized by extensive thickening of the dorsal or ventral dura of the cervical and thoracic vertebrae, partly associated with increased epidural fat, and the thickened dura dural is nodular or strip in shape, and a few may be associated with epidural mass to form a characteristic low signal intensity on T _ 2WI.
【作者单位】：北京大学第三医院放射科;
【分类号】：R656;R445.2

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