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Familial koilonychia.

X H Gao1, X Li, Y Zhao

  • 1Department of Dermatology, No. 1 Hospital of China Medical University, Shenyang 110001, China.

International Journal of Dermatology
|July 17, 2001
PubMed
Summary
This summary is machine-generated.

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Familial koilonychia, a rare nail disorder, presents as spoon-shaped nails in a young boy and his maternal relatives. This genetic condition affects nail morphology without systemic symptoms.

Area of Science:

  • Dermatology
  • Medical Genetics

Background:

  • Koilonychia, characterized by spoon-shaped nails, can be acquired or congenital.
  • Familial cases suggest a genetic predisposition to nail abnormalities.

Observation:

  • A 2-year-old boy presented with congenital, flat, spoon-shaped, and rough nail plates.
  • His mother and maternal grandmother exhibited similar nail abnormalities, indicating a hereditary pattern.
  • Systemic examinations and laboratory tests, including iron levels, were normal, ruling out common causes.

Findings:

  • Histological examination of affected nails revealed parakeratosis but no melanin granules.
  • Fungal cultures were negative, excluding onychomycosis.
  • The diagnosis of familial koilonychia was established based on the clinical presentation and family history.

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Implications:

  • This case highlights familial koilonychia as an inherited condition affecting nail morphology.
  • Early diagnosis and genetic counseling are important for affected families.
  • Further research into the genetic basis of familial koilonychia may elucidate specific gene mutations.