A deletion mutation of the connexin 26 (Gjb2) gene in a Turkish patient with vohwinkel syndrome
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A deletion mutation of the connexin 26 (gjb2) gene in a Turkish patient with Vohwinkel syndrome: Vohwinkel syndrome (VS), also known as keratoderma hereditaria mutilans, is a rare keratinization genetic disorder characterized by palmoplantar keratoderma, skeletal dysmorphisms and varying degrees of sensorineural deafness. Its mode of inheritance is autosomal-dominant, with mutations in loricrin and connexin 26 (GJB2) genes that manifest during infancy and become more evident during adulthood. We herein report a case of VS in a 23-year-old female exhibiting sensorineural hearing loss, palmar keratoderma and homozygous deletion mutation delE120 (c.358-360delGAG) in the GJB2 gene. VS, is a rare genetic disorder, should be considered in patients with palmoplantar keratoderma and hearing loss and should be investigated connexin 26 (GJB2) gene mutation.