各种不同病变可导致舞蹈样的投掷运动(ballism)。临床及动物实验提示,半侧舞蹈症可由于累及苍白球—下丘脑通路,luysii体或下丘脑—苍白球通路。系统性疾病如甲状腺毒症及糖尿病可有基底节的非特异性损伤而引起舞蹈症。同样,血糖水平波动与舞蹈手足徐动症的发作有关,但在血糖水平正常后消失。作者报告一例在数次低血糖昏迷后而CT扫描无任何异常的长期持续性舞蹈症。 A variety of different pathologies can lead to dance-like ballism. Clinical and animal experiments suggest that hemilempsychosis may be due to involvement of the globus globus-hypothalamic pathway, luysii body or hypothalamic-globus pallidus pathways. Systemic diseases such as thyrotoxicosis and diabetes may have non-specific damage to the basal ganglia and cause chorea. Similarly, fluctuations in blood glucose levels are associated with episodes of choreoathetosis, but disappear when blood glucose levels are normal. The authors report a long-term persistent chorea without any abnormality in the CT scan after several hypoglycemic coma.