Friedreich共济失调(FRDA),即脊髓型遗传性共济失调。这是属于常染色体隐性遗传的一种变性病。本文追踪观察到同胞两兄弟先后并行同患FRDA的2例。现报告如下。1 病历摘要 例1 男性,25岁,以站立行走困难17年为主诉就诊。该患自7—8岁时发病,走路欠稳,步基增宽,常 Friedreich’s ataxia (FRDA), a hereditary ataxia of the spinal cord. This is an autosomal recessive degenerative disease. This article traced two fellow brothers and sisters have FRDA in parallel with the two cases. The report is as follows. 1 case summary 1 male, 25 years old, standing to walk for 17 years to complain. The patient from the onset of 7-8 years old, walking less stable, step-based widening, often