神经纤维瘤病Ⅱ型的CT、MRI表现  

CT and MRI Diagnosis of Neurofibromatosis-Ⅱ

作　　者：陈慧[1] 周俊芬[2] 罗建国[1] 

机构地区：[1]三峡大学第一临床医学院宜昌市中心医院放射科,宜昌443003 [2]湖北省肿瘤医院放射科,430079

出　　处：《临床放射学杂志》2017年第12期1896-1899,共4页Journal of Clinical Radiology

摘　　要：目的探讨神经纤维瘤病Ⅱ型(NF2)的CT、MRI表现特点,以提高对该病的认识。方法回顾性分析12例NF2患者的临床和CT、MRI资料,分析NF2患者的病变分布、形态及CT、MRI特点。结果 12例患者均在桥小脑角区发现病变,5例为双侧,7例为单侧,CT较好显示3例骨性内听道扩大,3例合并多发脑膜瘤,其中2例脑膜瘤钙化,2例合并多发神经鞘瘤,1例听神经合并椎管内神经纤维瘤;MRI能够更好地显示病变的信号特点、分布和大小及与椎管和神经根的关系。结论 NF2的CT、MRI表现有一定特征性,MRI增强扫描对较小听神经瘤、多发脑膜瘤、椎管内肿瘤的检出有明显的优势,对诊断NF2有重要价值。Objective To analyse CT and MRI performance of neurofibromatosis type 2（ NF2）. Methods The clinical characteristics and CT/MRI findings of 12 cases of NF2 were analyzed retrospectively. Results 5 cases with bilateral acoustic neuroma,in which CT findings showed 3 cases had bony internal auditory canal expansion,3 cases combined with multiple meningioma and 2 cases had calcification. 2 cases with multiple schwannoma; 1 case with acoustic neuroma and intraspinal neurofibromas. MRI could well demonstrate the distribution,the size,the shape and signal characteristics of neurofibromas. Conclusion CT/MRI was capable to show the shape and signal features of neurofibromatosis type2 lesions. Therefore MRI has an important value in detecting the lesions in CNS whereas enhanced scan is helpful to show the lesions missed on plain scan.

关 键 词：神经纤维瘤病Ⅱ型 听神经瘤 体层摄影术 X线计算机 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R730.44[医药卫生—诊断学] R739.4[医药卫生—临床医学]