Cerebral hemisphere and spinal curd were mostly found to be invaded according to MRI.Conclusions EOMS was a subtype of the multiple sclerosis (MS).MRI and evoked potentials could help its diagnosis.

• 结论EOMS是多发性硬化的一个亚型，其起病急、症状多样但预后较好，诱发电位和影像学检查对EOMS诊断有一定意义。