Nail Surface Topography and Onychochronobiology

  • Gérald E. Piérard
  • Claudine Piérard-Franchimont


Nail surface changes are observed during aging and in some chronic inflammatory dermatoses. Descriptive terms are commonly used, but quantitative analytic measurements are welcome to increase sensitivity, precision, and reproducibility of observations. Bioinstrumentation, particularly optical profilometry, allows both static and repetitive assessments in time in order to derive aspects of onychochronobiology.


Alopecia Areata Nail Plate Longitudinal Striation Nail Psoriasis Optical Profilometry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by a grant from the “Fonds d’Investissement de la Recherche Scientifique” of the University Hospital of Liège. No other sources of funding were used to assist in the preparation of this manuscript. The authors have no conflicts of interest that are directly relevant to the content of this review. The authors appreciate the excellent secretarial assistance of Mrs. Ida Leclercq and Marie Pugliese.


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Copyright information

© Springer Berlin Heidelberg 2014

Authors and Affiliations

  • Gérald E. Piérard
    • 1
  • Claudine Piérard-Franchimont
    • 1
  1. 1.Laboratory of Skin exhibit and Imaging, Department of DermatopathologyUniversity Hospital of LiègeLiègeBelgium

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