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Related Concept Videos

Accessory Structures of the Skin: Nails01:05

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Confocal microscopy for healthy and pathological nail.

E Cinotti1, B Fouilloux, J L Perrot

  • 1Dermatology Department, University Hospital of Saint-Etienne, Saint-Etienne, France.

Journal of the European Academy of Dermatology and Venereology : JEADV
|December 11, 2013
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Summary

Confocal microscopy offers a non-invasive way to examine nails, aiding dermatologists in diagnosing nail disorders like onychomycosis and melanonichia without biopsies. This advanced imaging technique shows promise for future applications in nail disease investigation and surgical assistance.

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Area of Science:

  • Dermatology
  • Medical Imaging
  • Optical Engineering

Background:

  • Nail diseases present diagnostic challenges for dermatologists, often necessitating invasive nail biopsies.
  • There is a growing need for advanced, non-invasive imaging techniques for nail disorder diagnosis.
  • Confocal microscopy is an emerging high-resolution imaging technology with potential applications across various body surfaces, including nails.

Purpose of the Study:

  • To systematically review the literature on confocal microscopy for studying healthy and pathological nails.
  • To evaluate the current applications and future potential of confocal microscopy in nail diagnostics.
  • To explore its role in non-invasive in vivo examination and ex vivo surgical assistance.

Main Methods:

  • A systematic literature review was conducted focusing on confocal microscopy use in nail studies.
  • Studies examining both healthy and pathological nail conditions using confocal microscopy were included.
  • The review assessed the technique's suitability for in vivo and ex vivo nail examination.

Main Results:

  • Confocal microscopy allows non-invasive in vivo examination of the nail unit, including up to the nail bed.
  • The technique's suitability is enhanced by nail plate transparency, aiding corneocyte identification.
  • Potential diagnostic roles include onychomycosis, melanonichia, and drug penetration studies.

Conclusions:

  • Confocal microscopy is a promising non-invasive tool for diagnosing various nail diseases such as psoriasis and lichen planus.
  • Future applications may include intra-operative ex vivo examination for precise tumor margin delineation.
  • This technique could significantly reduce the need for nail biopsies in clinical practice.