摘要
目的分析肥大性下橄榄核变性(hypertrophic olivary degeneration,HOD)的MRI特征,提高对该病的认识。方法回顾性分析6例HOD的MRI表现以及导致该病产生的病因,这些病例多继发于脑干或小脑病变。结果影像学表现为延髓腹外侧局部肿胀,T1WI呈等或稍低信号,T2WI及T2-Flair均表现为高信号。结论 MRI能够显示出下橄榄核的这一特异性的退变,是诊断HOD的最佳方法。
Objective To analyze the features of HOD in order to improve our knowledge for this disease.Methods MRI findings in 6 patients with HOD were retrospectively analyzed,almost all of these cases with primary lesions were located in brain stem or cerebellum.Results HOD was shown as enlargement of ventral lateral part of medulla （6 cases） and presented as iso-or hypointensity on T2 weighted images as well as on Flair T2 weighted images.Conclusion This specific degeneration occurring in inferior olivary nucleus could be demonstrated clearly with MRI,thus,MRI is the best method for diagnosis of HOD.
出处
《医学影像学杂志》
2014年第3期355-357,共3页
Journal of Medical Imaging
关键词
肥大性下橄榄核变性
磁共振成像
发生机制
Hypertrophic olivary degeneration
Magnetic resonance imaging
Occurrence mechanism
