[Harlequin ichthyosis--medical and psychosocial challenges]

Area of Science:

• Dermatology
• Genetics
• Neonatology

Background:

• Harlequin ichthyosis is the most severe congenital keratinizing disorder, characterized by defective lipid transport due to ABCA12 gene mutations.
• Affected infants present with ectropion, eclabium, and characteristic fissured, plate-like skin.
• Current management involves neonatal intensive care, retinoid therapy, and long-term interdisciplinary treatment.

Observation:

• This case report details an infant diagnosed with Harlequin ichthyosis.
• The infant exhibited the typical physical manifestations of the disorder.
• A significant observation was the presence of severe psychomotor developmental delay.

Findings:

• The study confirms the genetic basis of Harlequin ichthyosis linked to ABCA12 gene mutations.
• A novel association between Harlequin ichthyosis and severe psychomotor developmental delay is reported.
• This finding expands the known clinical spectrum of Harlequin ichthyosis.

Implications:

• Early identification and management of Harlequin ichthyosis are crucial for improving infant survival and quality of life.
• The association with psychomotor developmental delay necessitates comprehensive, long-term developmental monitoring and support.
• Further research is warranted to understand the underlying mechanisms connecting ABCA12 gene mutations, skin barrier dysfunction, and neurodevelopmental outcomes.