橄榄桥脑小脑萎缩是一种原因未明的神经系统变性病变，现将临床中遇到的橄榄桥脑小萎缩四家系综合报告如下。病例与家系家系１：先证者（家系图１Ⅱ３），女，５６岁。４１岁时无明显诱因出现走路不稳，进行性加重，近二年走路易跌倒，并出现摆头及肢体摆动，丧失写字能力... Olive pontine cerebellar atrophy is a unexplained nervous system degeneration, now encountered in the clinical olivopontocerebellar atrophy four family comprehensive report is as follows. Case and family pedigree 1: proband (family diagram 1 Ⅱ 3), female, 56 years old. At age 41, there was no obvious incentive to walk instability, progressive increase in the past two years, easy to fall, and swinging head and body swing, loss of writing ability ...