1. Department of Dermatology and Pediatric Dermatology, National Reference Centre for Rare Disorders, Hôpital des Enfants Pellegrin, European Network Skin Diseases Centre Hospitalier Universitaire du Bordeaux Bordeaux France
2. Department of Pathology CHU de Bordeaux Pessac France
3. Department of Medical Genetics CHU de Bordeaux Bordeaux France
4. Department of Pathology and Reference Center for Genodermatoses (MAGEC Center), Necker‐Enfants Malades Hospital Paris Centre University Paris France
5. Department of Genetics and Reference Center for Genodermatoses (MAGEC Center), Necker‐Enfants Malades Hospital Paris Centre University Paris France
6. Department of Dermatology and Reference Center for Genodermatoses (MAGEC Center), Necker‐Enfants Malades Hospital Paris Centre University Paris France