髓内神经鞘瘤的磁共振成像特征
Magnetic Resonance Imaging Features of Intramedullary Schwannomas.
作者信息
Gao Lu, Sun Bing, Han Fang, Jin Yingying, Zhang Jiawen
机构信息
From the Huashan Hospital of Fudan University, Shanghai, China.
出版信息
J Comput Assist Tomogr. 2017 Jan;41(1):137-140. doi: 10.1097/RCT.0000000000000493.
OBJECTIVE
To identify the magnetic resonance imaging features of intramedullary spinal schwannomas.
METHODS
Clinical and magnetic resonance imaging findings of 8 patients with pathologically confirmed intramedullary schwannomas were reviewed.
RESULTS
There were 6 male and 2 female patients (mean age, 49 years). Tumors were located in the cervical cord (2), the thoracic cord (5), and the cervicothoracic cord (1). Most were in the dorsolateral spinal cord and limited to one side. Expansion of the cord was observed. The majority were hypointense on T1-weighted images and hypo-hyperintense on T2-weighted images. Peritumoral edema was easily found. Gadolinium enhancement was obviously. No recurrence was seen during the follow-up period.
CONCLUSIONS
A tumor located in the dorsolateral spinal cord, causing expansion of the cord, with hypointense areas on T2-weighted and obviously enhancement, should arise suspicion of an intramedullary schwannoma.
目的
确定脊髓髓内神经鞘瘤的磁共振成像特征。
方法
回顾性分析8例经病理证实的脊髓髓内神经鞘瘤患者的临床及磁共振成像表现。
结果
男性6例，女性2例（平均年龄49岁）。肿瘤位于颈髓（2例）、胸髓（5例）和颈胸髓（1例）。大多数位于脊髓背外侧，局限于一侧。可见脊髓增粗。多数肿瘤在T1加权像上呈低信号，在T2加权像上呈低高信号。瘤周水肿易见。钆增强明显。随访期间未见复发。
结论
位于脊髓背外侧、导致脊髓增粗、T2加权像上有低信号区且增强明显的肿瘤，应怀疑为脊髓髓内神经鞘瘤。
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