Abstract:Epidermolysis bullosa simplex (EBS) is a heterogeneous, congenital, mucocutaneous fragility syndrome, characterized ultrastructurally by cleavage within the basal keratinocyte. Seventy-five per cent of cases are attributable to mutations in KRT5 and KRT14, the vast majority of which are dominant negative mutations, resulting in impaired keratin intermediate filament dynamics within the basal layer of the epidermis. The presenting phenotype, including extracutaneous manifestations and overall severity, is often… Show more
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