Hemichorea caused by intracranial hemorrhage following contralateral herpes zoster ophthalmicus

Abstract

A healthy, 66-year-old, right-handed man was admitted to our university hospital and diagnosed with herpes zoster ophthalmicus (HZO). After 4 weeks, he complained of hemichorea on his left side. Brain MRI showed a focal hemorrhage in the right subthalamic area. No evidence of aneurysmal lesion or cerebral angiitis was observed on cerebral angiography.