多结节和空泡状神经元肿瘤的影像诊断价值分析(附3例报告)  

The MR imaging diagnostic value of multinodular and vacuolating neuronal tumor(report of 3 cases)

作　　者：向雪莲 王宇军[1] XIANG Xuelian;WANG Yujun(Department of Radiology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, P.R.China)

机构地区：[1]浙江省立同德医院放射科,浙江杭州310012

出　　处：《医学影像学杂志》2021年第10期1642-1645,共4页Journal of Medical Imaging

基　　金：浙江省医药卫生科技计划项目(编号:2019319609)。

摘　　要：目的探讨多结节和空泡状神经元肿瘤(multinodular and vacuolating neuronal tumor,MVNT)的临床及影像学特点,以提高对MVNT的认识。方法选取3例经临床随访证实的MVNT患者的临床特点和颅脑MRI表现进行回顾性分析。结果1例临床表现右手指麻木,1例为“失神”发作,1例临床表现有头痛,曾有突发晕厥病史。MRI表现可见2例病灶位于额叶,1例病灶位于左侧颞叶。3例病灶内均见多个类圆形小结节,呈长T1、长T2信号,增强均未见强化,均无瘤周水肿及占位效应,弥散不受限。1例随访6年无变化,1例随访2年无变化,1例随访3年无变化。结论MVNT具有典型的MRI表现,结合临床可以确诊。影像医师应加强对该疾病的认识,从而避免患者不必要的手术治疗。Objective To discuss the clinical and imaging characteristics of multinodular and vacuolating neuronal tumors(MVNT)so as to improve the knowledge about this disease.Methods The clinical data and MR manifestations of 3 patients with clinically confirmed MVNT were retrospectively analyzed.Results One case showed numbness in the right finger.One case was a"absence"episode.One patient had a headache and a history of sudden syncope.The MR imaging findings showed that 2 lesions were located in the frontal lobe,and 1 lesion was located in the left temporal lobe.All lesions were found as clusters and nodules.On T1 weighted imaging,lesions ranged from hypointense to isointense,and on T2 weighted imaging,they appeared hyperintense.They typically did not have enhancement,mass effect and encompassing oedema,with the absence of restricted diffusion.One case was followed up for 6 years,one case was followed up for 2 years,and one case was followed up for 3 years.Long-term follow-up of these cases remained stable.Conclusion MVNT has characteristic MRI features,and combined with clinical manifestations,the definite diagnosis could be made.Radiologists should improve the knowledge of this disease,for prompting the clinical doctors to avoid unnecessary surgery for patients.

关 键 词：多结节和空泡状神经元肿瘤 磁共振成像 

分 类 号：R739.41[医药卫生—肿瘤] R445.2[医药卫生—临床医学]