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[Alterations in nails and teeth as a clue for genodermatoses].

P Itin1

  • 1Dermatologie Universitätsspital Basel, Petersgraben 4, 4031, Basel, Schweiz, peter.itin@unibas.ch.

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Summary

Diagnosing rare genetic skin diseases (genodermatoses) can be challenging. This review highlights key nail and teeth features that aid clinicians in identifying these complex conditions.

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Area of Science:

  • Dermatology
  • Genetics
  • Oral Medicine

Context:

  • Monogenic diseases, comprising approximately 10,000 conditions, frequently involve the skin and its appendages (around 30%).
  • Diagnosing rare genodermatoses presents significant clinical challenges due to diverse and often incomplete symptom presentations.

Purpose:

  • To provide clinicians with essential diagnostic features related to nails and teeth.
  • To facilitate the identification of rare genodermatoses in clinical practice.

Summary:

  • Genodermatoses often present as incomplete or oligosymptomatic syndromes, necessitating a deep understanding of characteristic features for accurate diagnosis.
  • Specific dental anomalies (e.g., enamel defects resembling lines of Blaschko in focal dermal hypoplasia) and nail abnormalities (e.g., triangular lunulae in nail-patella syndrome) can serve as crucial diagnostic indicators.
  • Nail and tooth malformations, originating from ectoderm, are valuable diagnostic clues, particularly in ectodermal dysplasia syndromes.

Impact:

  • Enhances diagnostic capabilities for rare genetic skin disorders.
  • Aids in the early identification of underlying genetic defects.
  • Improves patient management by enabling timely and accurate diagnosis of genodermatoses.