摘要
目的:探讨脊髓血管母细胞瘤磁共振成像(MRI)影像学特征。方法:回顾性分析经手术病理证实12例脊髓血管母细胞瘤的MRI表现。结果:在12例中,病灶位于颈髓7例,胸髓3例,颈胸段、胸腰段水平各1例。其中3例为多发灶,1例合并脑内血管母细胞瘤。MRI表现:受侵脊髓局限性增粗,与正常脊髓信号相比,T1WI呈等低信号结节性肿块,其中1例伴斑片状高信号(因出血);T2WI为混杂高信号;增强扫描,肿瘤结节显著强化,边界清晰。在T2WI或增强扫描上,见特征性瘤内或瘤周迂曲的畸形血管流空信号9例,肿瘤上下继发性脊髓空洞或囊肿10例。结论:MRI检查是诊断脊髓血管母细胞瘤的有效手段,有助于诊断和鉴别诊断。
Abstract
Objective: To explore the MRI characteristics of hemangioblastoma of the spinal cord. Methods: MRI appearance of 12 spinal cord hemangioblastoma patients with surgically and pathologically proved were analyzed restrospectively. Results: In the 12 cases of spinal cord hemangioblastomas, 3 case had multiple lesions, one patient also had intracranial hemangioblastoma. The lesions were located in cervical spinal cord in 7 cases, thoracic spinal cord 3 cases, cervical thoracic segement in 1 case, thoracic lumbar segement in 1 case. MRI appearance: the signal on T1WI of the tumors showed iso-hypointense in contrast to the normal spinal cord, higher intensity(n=1) than blood; and mixed hyper-hypointense signal on T2WI. After enhancement, nodular tumors showed marked enhancement with distinct border on T1WI. The blood flow-void-sign(n=11) within and around the masses was seen on T2WI or on contrast scans. There were secondary syringomyelia or cystic changes, above or below the tumor in 10 cases. Conclusion: MRI is an efficient method in the diagnosis of spinal cord hemangioblastoma. It plays an important role in the diagnosis and differential diagnosis of hemangioblastoma.
关键词
血管母细胞瘤 /
脊髓肿瘤 /
磁共振成像
Key words
hemangioblastoma /
spinal cord neoplasms /
magnetic resonance imaging
徐秀芳;陈祖华;余日胜.
脊髓血管母细胞瘤MRI诊断[J]. 中国临床医学影像杂志. 2006, 17(7): 376-378
XU Xiu-fang;CHEN Zu-hua;YU Ri-sheng.
MRI diagnosis of spinal cord hemangioblastoma[J]. Journal of China Clinic Medical Imaging. 2006, 17(7): 376-378
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