We report the case of a 52-year-old Japanese man who, while he had no cerebellar ataxia or parkinsonism, was revealed to have silent cerebellar hypoperfusion/mild cerebellar atrophy and sacral autonomic disorder. His sacral autonomic disorder was urinary retention without marked prostate hyperplasia. Urodynamics-sphincter electromyography revealed detrusor hyperactivity with impaired contraction and neurogenic changes of the sphincter motor unit potentials. Although he did not have a motor disorder, these features suggested possible multiple system atrophy-cerebellar (MSA-C) form. The present case report suggests that neuroimaging helps in diagnosing “premotor” MSA-C form in situ.

中文翻译：

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可能的“前运动”多系统萎缩 - 小脑形式

我们报告了一名 52 岁日本男性的病例，他没有小脑共济失调或帕金森病，但被发现患有无症状小脑低灌注/轻度小脑萎缩和骶部自主神经紊乱。他的骶部自主神经紊乱是尿潴留，没有明显的前列腺增生。尿动力学-括约肌肌电图显示逼尿肌过度活跃，括约肌运动单位电位的收缩受损和神经源性变化。尽管他没有运动障碍，但这些特征表明可能存在多系统萎缩-小脑 (MSA-C) 形式。本病例报告表明，神经影像学有助于原位诊断“运动前”MSA-C 形式。