偏身午蹈病通常突然发生,可伴随近端颤搐运动,最常见的原因是对侧大脑半球深部结构小区域软化,其次是小量出血所致。病变的定位诊断一直存在争论,近来病理和X线证实,病变的对侧丘脑下核发生小的梗塞或出血,某些病例可累及纹状体 Partial chorale usually occurs suddenly, may be accompanied by proximal twitch movement, the most common cause is contralateral hemisphere deep structure of small areas soften, followed by a small amount of bleeding. The diagnosis of the localization of lesions has been controversial, recent pathology and X-ray confirmed lesions of the contralateral subthalamic nuclei small infarction or bleeding, some cases may involve the striatum