A Case of Hemichorea Ipsilateral to the Basal Ganglia Hemorrhage

J Korean Neurol Assoc > Volume 17(5); 1999 > Article

Journal of the Korean Neurological Association 1999;17(5): 721-725.

기저핵출혈의 동측에 발생한 편측 무도병 1예

오종배, 김한준, 전범석, 노재규

서울대학교 병원 신경과,서울대학교 의학연구원 신경과학 연구소

A Case of Hemichorea Ipsilateral to the Basal Ganglia Hemorrhage

Jong-bai Oh 1 , Han-Joon Kim 1 , Beom S. Jeon 1 , Jae-Kyu Roh

Deparment of Neurology, Seoul National University Hospital Neuroscience Research Institute, Medical Research Center, Seoul National University Hospital

Abstract

Hemichorea is usually caused by lesions in the contralateral subthalamus and basal ganglia. Ipsilateral lesions have rarely been reported to be responsible for the abnormal movement. A 27 year-old woman with well-controlled hyper-thyroidism presented with sudden involuntary movements in the right limbs and a mild headache. The movements were random, irregular, repetitive, and most prominent in the right hand and forearm, but also found in the right leg and face. She experienced no weaknesses in the contralateral limbs. A brain magnetic resonance imaging(MRI) taken after 7 days showed early subacute hematoma in the right basal ganglia. There were no lesions in the left hemisphere. In a cerebral angiography, the bilateral major cerebral vessels were narrowed around the circle of Willis. We critically review previous reports of and explanations for the development of ipsilateral hemichorea. J Kor Neurol Ass 17(5):721~725, 1999 Key Words : Hemichorea, Ipsilateral, Basal ganglia, Intracerebral hemorrhage