摘要目的:检测1例表现为掌跖角化、假性阿洪及耳聋的Vohwinkel综合征患者的基因变异。方法:采集先证者临床信息，并检测分析基因突变位点。结果:先证者临床表现符合经典型Vohwinkel综合征，基因检测发现GJB2基因c.160A>C（p.N54H）杂合突变，患者父母及健康对照均未发现此位点变异。结论:GJB2基因c.160A>C（p.N54H）突变首次被发现与经典型Vohwinkel综合征相关，经典型Vohwinkel综合征及掌跖角皮症伴耳聋之间存在变异位点重叠。

abstractsObjective:To detect gene mutations in 1 patient with Vohwinkel syndrome who presented with palmoplantar keratoderma, pseudo-ainhum and deafness.Methods:Clinical data were collected from the proband, and a genetic test was performed to identify mutation sites.Results:Clinical manifestations of the proband were consistent with classical Vohwinkel syndrome. The genetic test revealed a heterozygous mutation c.160A>C (p.N54H) in the GJB2 gene, which was not detected in her parents or healthy controls.Conclusion:The heterozygous mutation c.160A>C (p.N54H) in the GJB2 gene was first identified in a patient with classical Vohwinkel syndrome, and there were overlaps in mutation sites between classical Vohwinkel syndrome and palmoplantar keratoderma with deafness.