title: [Sandy nails and twenty-nail dystrophy of childhood. Apropos of 2 cases].
abstract: 2 apparently idiopathic cases of twenty-nail dystrophy of childhood are reported with follow-ups of 4 and 16 years, respectively. The associated koilonychia appears to be only fortuitous and related to the fragility of the nail. Trachyonychia should be considered as a symptom often related to external traumatism or dermatoses, particularly alopecia areata or lichen planus, of which it could be a specific isolated location. Within the spectrum of apparently idiopathic trachyonychies , the twenty-nail dystrophy of childhood appears to be a real entity on the basis of its clinical features and course.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009260:Nail Diseases / Q000145:classification / Q000209:etiology*
vernacular_title: Ongles grésés et "twenty-nail dystrophy of childhood". A propos de 2 cas.