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Related Experiment Videos

Hereditary distal onycholysis--a case report.

J Bazex1, R Baran, F Monbrun

  • 1Service de Dermatologie Hôpital de La Grave, Toulouse, France.

Clinical and Experimental Dermatology
|March 1, 1990
PubMed
Summary

This study describes distal onycholysis, a nail condition, in a family with autosomal dominant inheritance. Key features include slow nail growth, thickened nails, and cold sensitivity in fingers.

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Area of Science:

  • Dermatology
  • Genetics
  • Nail Diseases

Background:

  • Distal onycholysis is a nail disorder characterized by separation of the nail plate from the nail bed.
  • Familial occurrence suggests a potential genetic basis for certain types of onycholysis.

Observation:

  • The authors report multiple cases of distal onycholysis within the same family.
  • Clinical presentation includes slow nail growth, scleronychia (thickened nails), and a characteristic proximal detachment edge.
  • Affected individuals exhibit palmoplantar hyperhidrosis and significant cold sensitivity in their fingers.

Findings:

  • The inheritance pattern observed is autosomal dominant, indicating a strong genetic component.
  • Nail lesions appear to be the isolated clinical manifestation in affected family members.

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  • This represents the third reported instance of this specific nail disorder in medical literature.

    • Implications:

    • Understanding the genetic basis of this distal onycholysis can aid in diagnosis and genetic counseling.
    • Further research may elucidate the specific genes and pathways involved in nail growth and separation.
    • This case series contributes valuable data to the limited existing literature on familial distal onycholysis.