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Linear and whorled nevoid hypermelanosis with delayed psychomotor development
1Department of Physical Medicine & Rehabilitation, Ajou University School of Medicine, Suwon, Korea.
Yonsei Medical Journal
|August 1, 1996
Summary
This study describes a rare neurocutaneous syndrome in a child with severe developmental delays and unique skin hyperpigmentation following Blaschko's lines. Genetic analysis ruled out mosaicism, suggesting a distinct condition.
Area of Science:
- Dermatology
- Genetics
- Pediatrics
Background:
- Neurocutaneous syndromes are a group of disorders involving abnormalities of the skin and nervous system.
- Pigmentary abnormalities can be indicative of underlying genetic or developmental issues.
Observation:
- A 25-month-old girl presented with severe psychomotor delay and distinct linear and whorled hyperpigmentations on her body, following Blaschko's lines.
- The hyperpigmentation pattern was inverse to hypomelanosis of Ito and excluded the face, palms, soles, eyes, and mucous membranes.
Findings:
- Histological examination showed basal layer hyperpigmentation without pigment incontinence or dermal melanophages.
- Chromosomal analysis of both hyperpigmented and hypopigmented skin revealed a normal female karyotype, excluding mosaicism or chimerism.
Implications:
- This case highlights a rare neurocutaneous syndrome, potentially termed linear and whorled nevoid hypermelanosis.
- Further research is needed to understand the etiology and long-term implications of this condition.