Alrun Hotz, Vinzenz Oji, Emmanuelle Bourrat, Nathalie Jonca, Juliette Mazereeuw-Hautier, Regina C. Betz, Ulrike Blume-Peytavi, Karola Stieler, Fanny Morice-Picard, Ines Schönbuchner, Susanne Markus, Nina Schlipf, Judith Fischer
DOI: 10.2340/00015555-2299

Twenty-six families with keratinopathic ichthyoses (epidermolytic ichthyosis, superficial epidermolytic ichthyosis or congenital reticular ichthyosiform erythroderma) were studied. Epidermolytic ichthyosis is caused by mutations in the genes KRT1 or KRT10, mutations in the gene KRT2 lead to superficial epidermolytic ichthyosis, and congenital reticular ichthyosiform erythroderma is caused by frameshift mutations in the genes KRT10 or KRT1, which lead to the phenomenon of revertant mosaicism. In this study mutations were found in KRT1, KRT2 and KRT10, including 7 mutations that are novel pathogenic variants. Novel clinical features found in patients with congenital reticular ichthyosiform erythroderma are described, such as mental retardation, spasticity, facial dysmorphisms, symblepharon and malposition of the 4th toe.

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