椎管内神经源性肿瘤MR诊断价值

Intravertebral duct neurogenic tumor of MR diagnostic value

目的:对椎管内神经源性肿瘤的影像表现进行分析,探讨神经源性肿瘤的MR表现特征及诊断价值。方法:经手术病理证实神经源性肿瘤13例,所有病例均采用自旋回波T1加权及T2加权序列进行扫描,常规行矢状位扫描,必要时加扫轴位和/或冠状位。所有病例均通过MR图像对肿瘤的部位、形态、大小、边界、信号、是否发生坏死囊变、椎间孔改变及增强后强化情况各方面进行观察分析。结果:13例神经源性肿瘤中发生于颈、胸椎7例,肿瘤呈长圆形5例,9例肿瘤引起椎间孔扩大,肿瘤信号呈等T1信号8例,长T1信号3例,短T1信号2例,等T2信号3例,长T2信号10例,病灶内发生斑点状坏死2例,斑片状坏死3例,明显囊变1例,8例经增强扫描病例呈明显不均匀强化5例,均匀强化3例。结论:椎管内神经源性肿瘤具有特征性MR表现,通过MR表现可做出正确的诊断,并根据这些特征性表现可与其他一些椎管内肿瘤进行鉴别诊断。

Objective：For the neurogenic tumor image analysis, summarizes neurogenic cortical tubers characteristics and diagnostic value. Methods：After surgical pathology neurogenic tumor 13 cases, all cases were adopted to spin echo T1- weighted and T2 weighted scan sequence, conventional sagittal scan line position, when necessary, and added axis and/or coronal. All the cases of cancer by MR images of the shape, size, site, boundary, signal, or necrosis capsule, and change of pore after observing all aspects of strengthening case analysis. Results： 13 cases neurogenic tumor found in cervical, thoracic vertebra 7 cases, the tumor is oblique in 5 cases, 9 cases of cancer, caused by a tumor signal as T1 signal in 8 cases, long, short T1 signal 3 cases, such as T1 signal signal 3 cases, long T2 lesions in 10 cases, T2 signal occurs in 2 cases, speckled necrosis patchy necrosis, 3 cases of variable, 1 case with cystic, 8 cases by scan is obviously not uniform aggrandizement 5 cases, uniform aggrandizement 3 cases. Conclusion：The neurogenic tumor is characterized by cortical tubers cortical tubers, can make the correct diagnosis, and according to the characteristic and some other spinal canal tumors in the differential diagnosis.