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Harlequin ichthyosis: a case study.

Laura Murphy-Brown1, Judith A Vella, Phylls Lawlor-Klean

  • 1NICU, Advocate Christ Medical Center, Oak Lawn, Illinois 60453, USA.

Neonatal Network : NN
|June 9, 2004
PubMed
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Harlequin ichthyosis, the most severe congenital ichthyosis, causes a thick, scaly "horny shell" on infants. This condition severely impacts mobility and skin barrier function, increasing infection and metabolic risks.

Area of Science:

  • Dermatology
  • Genetics
  • Neonatology

Background:

  • Congenital ichthyosis is a group of rare genetic skin disorders.
  • Harlequin ichthyosis represents the most severe phenotype.
  • Characterized by extreme fetal skin thickening and scaling.

Observation:

  • Infants present with a dense, waxy, platelike scale covering the entire body.
  • Deep fissures are evident within the scales.
  • Associated findings include limb contractures and facial/digital deformities.

Findings:

  • The thick scale restricts movement and compromises the skin's barrier function.
  • Neonates are highly susceptible to dehydration, infection, and thermal instability.
  • Metabolic derangements are common due to impaired skin integrity.

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Implications:

  • Early recognition and intensive supportive care are critical for survival.
  • Management requires a multidisciplinary approach involving neonatology, dermatology, and genetics.
  • Understanding the pathophysiology is key to developing targeted therapies for congenital ichthyosis.