摘要腓骨肌萎缩症（CMT）是一种逐渐进展的遗传性周围神经病，其主要临床表现为对称性肢体远端肌肉进行性无力萎缩、感觉障碍、双下肢腱反射消失、弓形足、爪形手、脊柱侧弯。本文报道1个CMT4C型家系，其先证者携带 SH3TC2基因的c.2782C>T和c.1586G>A复合杂合突变，主要症状为共济失调。对国内外主要数据库已报道的CMT4C型患者的相关文献进行复习，为该类患者的早期识别和诊断提供参考。

abstractsCharcot-Marie-Tooth disease (CMT) is a progressive hereditary peripheral neuropathy characterized by symmetrical distal muscle atrophy, sensory impairment, disappearance of tendon reflexes in both lower limbs, arch foot, claw hand, and scoliosis. This article reports a family of CMT type 4C (CMT4C), whose proband carries a compound heterozygous mutation of c.2782C>T and c.1586G>A in the SH3TC2 gene, with ataxia as the main symptom. The literatures related to CMT4C patients in major databases at home and abroad are summarized to provide reference for early identification and diagnosis of this type of patient.