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A keratinisation disorder characterised by focal or diffuse palmoplantar keratoderma. A patchy distribution is observed with accentuation on the thenar, hypothenar and the arches of the feet. The disease becomes apparent in infancy and is associated with sensorineural hearing loss that shows a variable age of onset. The disease is transmitted in an autosomal dominant manner with incomplete penetrance. Caused by heterozygous mutation in the gene encoding connexin-26 (GJB2; 121011) on chromosome 13q12.
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A keratinization disorder characterized by focal or diffuse palmoplantar keratoderma. A patchy distribution is observed with accentuation on the thenar, hypothenar and the arches of the feet. The disease becomes apparent in infancy and is associated with sensorineural hearing loss that shows a variable age of onset. The disease is transmitted in an autosomal dominant manner with incomplete penetrance. Caused by heterozygous mutation in the gene encoding connexin-26 (GJB2; 121011) on chromosome 13q12.
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