摘要
目的分析小脑发育不良神经节细胞瘤的MRI特点,以加深对该病的认识,从而提高对本病的鉴别水平。方法回顾性分析6例从2010至2017年经手术病理鉴定为小脑发育不良神经节细胞瘤的临床及影像学资料,术前均行MRI平扫及增强检查。结果6例均单发,其中2例同时累及左侧小脑半球及蚓部,3例位于左侧小脑半球,1例位于右侧小脑半球。所有病例均引起幕上脑室扩张,1例出现小脑扁桃体下疝。6例T1WI均表现为层状等、低信号,T2WI呈层状等、高信号,呈“虎纹征”改变,增强检查4例呈条索状轻度强化,其余2例未见强化。结论小脑发育不良神经节细胞瘤罕见,但影像表现具有特征性,掌握其MRI表现有助于术前对该病做出准确诊断。
Objective To analyze the MRI features of cerebellar dysplasia gangliocytoma in order to deepen the understanding of the disease and improve the differential diagnosis of the disease.Methods The clinical and imaging data of 6 patients with dysplastic gangliocytoma of cerebellum,diagnosed via surgery as well as pathology from 2010 to 2017 were reviewed retrospectively.All patients were performed by both plain and enhanced MRI scanning.Results Solitary lesion was found in 6 patients.The lesions of 2 cases involved in the left cerebellar hemisphere and vermis,3 case in the left cerebellum and 1 case in the right.There were hydrocephalus in all the patients on MRI,among which 1 case complicated with caudal herniation of cerebellar tonsils.MRI showed"tiger striped sign",the lesions presented a striated pattern of alternating linear bands of low signal on T1WI and high signal on T2WI.4 patients had cable strip like enhancement in the tumors and 2 patients showed no obvious enhancemen after administration of Gd-DTPA.Conclusion Dysplastic gangliocytoma of cerebellum is rare,but its imaging features are characteristic.Mastering its MRI manifestations is helpful to make an accurate diagnosis of the disease before operation.
作者
卢素洁
李大创
刘然申
LU Su-jie;LI Da-chuang;LIU Ran-shen(Department of Medical Imaging,No.923 Hospital of PLA,Nanning 530021,Guangxi Provice,China)
出处
《中国CT和MRI杂志》
2020年第11期4-6,62,共4页
Chinese Journal of CT and MRI
关键词
小脑发育不良神经节细胞瘤
磁共振成像
诊断
Dysplastic Gangliocytoma of Cerebellum
Magnetic Resonance Imaging
Diagnosis
