John Libbey Eurotext

European Journal of Dermatology

Understanding nail disorders Volume 11, issue 2, March - April 2001

Authors
Nail Disease Centre, 42, rue des Serbes, 06400 Cannes, France.
  • Key words: nail apparatus, nail unit, onychomycosis
  • Page(s) : 159-62
  • Published in: 2001

Diagnosing nail dystrophies and understanding their pathogenesis is best accomplished if the origin of the disorder is first established. Exogenous. In this group, the nail plate is altered by exogenous factors and is the site of primary involvement: periungual tissues may be affected secondarily. Endogenous. In this group, the nail plate is altered secondarily by changes occurring in the matrix, proximal nail fold, nail bed, hyponychium or underlying bony phalanx.