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A Japanese boy with Young-Simpson syndrome
1Department of Neonatology, Tokyo Metropolitan Children's Hospital, Japan.
Acta Paediatrica Japonica : Overseas Edition
|August 1, 1997
Summary
This study reports a rare genetic disorder in an 8-month-old boy, presenting unique facial features and developmental delays. This is the first reported male case, particularly in Oriental populations, expanding the understanding of this condition.
Area of Science:
- Genetics
- Pediatrics
- Dysmorphic Syndromes
Background:
- Young and Simpson described a unique case in 1987 with hypothyroidism, congenital heart disease, severe mental retardation, and distinctive facial dysmorphism.
- The syndrome's inheritance pattern and prevalence remain poorly understood due to limited reported cases.
Observation:
- An 8-month-old boy presented with features mirroring the original description by Young and Simpson.
- The patient exhibited microcephaly, blepharophimosis, a bulbous nose, thin lip, low-set ears, and micrognathia.
- This represents a sporadic case with phenotypically normal, unrelated parents, suggesting potential de novo mutations.
Findings:
- This is the first documented male patient with this specific constellation of symptoms.
- This case is also the first reported instance in an Oriental individual.
- The phenotypic similarity to the original report reinforces the distinctiveness of the syndrome.
Implications:
- This report expands the known clinical spectrum and demographic data for this rare genetic disorder.
- Further research may elucidate the underlying genetic cause and potential therapeutic targets.
- Increased awareness can aid in earlier diagnosis and management of affected individuals.