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Harlequin ichthyosis in two siblings.

Aamir Habib¹, Waseem Pasha, Naeem Raza

¹Department of Dermatology, Combined Military Hospital, Abbottabad. aamir1158@gmail.com

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP

|July 30, 2011

Summary

This summary is machine-generated.

Harlequin ichthyosis, a severe congenital skin disorder, is often fatal in newborns. Genetic mutations in the ABCA12 gene are the primary cause, impacting skin barrier function.

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Area of Science:

Genetics
Dermatology
Neonatology

Background:

Harlequin ichthyosis is a rare, severe congenital ichthyosis with high neonatal mortality.
Autosomal recessive inheritance is suspected, with recent findings linking it to ABCA12 gene mutations.

Observation:

This case involves a newborn diagnosed with Harlequin ichthyosis.
The parents are from a consanguineous marriage.
A previous sibling experienced a similar condition and died in early neonatal life.

Findings:

The majority of Harlequin ichthyosis cases result from homozygous mutations in the ABCA12 gene.
These mutations lead to impaired epidermal lipid transport, causing hyperkeratosis and abnormal skin barrier function.
Prenatal diagnosis for Harlequin ichthyosis is feasible.

Implications:

Understanding the genetic basis (ABCA12 mutations) aids in diagnosis and potential future therapies.
Consanguinity increases the risk of autosomal recessive disorders like Harlequin ichthyosis.
Early diagnosis and genetic counseling are crucial for affected families.