Generalized and Naevoid Epidermolytic Ichthyosis in Denmark: Clinical and Mutational Findings

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  • Anette Bygum, Dermato-Venerologi og Allergicentret, Denmark
  • Marie Virtanen
  • ,
  • Flemming Brandrup, Dermato-Venerologi og Allergicentret, Denmark
  • Agneta Gånemo
  • ,
  • Mette Sommerlund
  • Gitte Strauss, Denmark
  • Anders Vahlquist
A Danish-Swedish collaboration was established to identify and classify a Danish cohort of patients with epidermolytic ichthyosis, also known as epidermolytic hyperkeratosis. Patients were recruited from 5 dermatology departments in Denmark, and data were obtained using a structured questionnaire and a systematic examination together with photographs, histopathological descriptions and blood samples for mutational analysis. Sixteen patients from 12 families with generalized or naevoid epidermolytic ichthyosis and ichthyosis bullosa of Siemens were identified. Five families had mutations in K1 and 6 families had mutations in K10. Nine patients had been treated with systemic retinoids (etretinate, acitretin, isotretinoin or alitretinoin), but only 3 patients had acceptable treatment responses and chose to continue therapy. In conclusion epidermolytic ichthyosis is a rare disease with a prevalence of approximately 1 in 350,000 in Denmark and a high percentage of de novo mutations (75%). We identified 4 novel disease-causing mutations.
Original languageEnglish
JournalActa Dermatovenereologica
ISSN0001-5555
DOIs
Publication statusPublished - 2012

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