Department of Medicine, Akron General Medical Center, Akron, Ohio; and.
J Neurosurg. 2014 Feb;120(2):522-7. doi: 10.3171/2013.11.JNS13980. Epub 2013 Dec 13.
Acute cerebellitis is an inflammatory process that usually affects bilateral cerebellar hemispheres in the pediatric population. Pseudotumoral hemicerebellitis is an extremely rare presentation in which unilateral cerebellar involvement mimics a tumor that can exert significant mass effect on the surrounding structures, which may require surgical intervention. Magnetic resonance imaging characteristics that suggest cerebellitis include cerebellar swelling, T2 hyperintensity, and pial enhancement. Advanced neuroimaging, including MR perfusion and MR spectroscopy, may be helpful in excluding other diagnoses. The authors present the case of pseudotumoral hemicerebellitis in the oldest documented patient, a 73-year-old man who required surgical decompression, and they provide a brief discussion of advanced neuroimaging findings.
急性小脑炎是一种炎症过程，通常影响儿科人群的双侧小脑半球。假性肿瘤性小脑炎是一种极为罕见的表现，单侧小脑受累类似于肿瘤，可对周围结构产生显著的占位效应，可能需要手术干预。提示小脑炎的磁共振成像特征包括小脑肿胀、T2 高信号和脑膜强化。高级神经影像学，包括磁共振灌注和磁共振波谱，可能有助于排除其他诊断。作者报告了一例有记录以来最年长的患者的假性肿瘤性小脑炎病例，这是一名 73 岁的男性，需要手术减压，并简要讨论了高级神经影像学发现。
