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Extensive mongolian spots with autosomal dominant inheritance
Yc Beeregowda1, Kumar Bv Naveen, Yc Manjunatha
1Department of Pediatrics, Sri Devaraj Urs Medical College, Tamaka, India.
Iranian Journal of Pediatrics
|October 12, 2012
Summary
Extensive Mongolian spots, typically fading in childhood, can persist and indicate potential metabolic disorders. This family study reveals an autosomal dominant inheritance pattern for these persistent markings.
Area of Science:
- Genetics
- Dermatology
- Pediatrics
Background:
- Mongolian spots are common, benign congenital skin macules.
- Persistent or extensive Mongolian spots may signal underlying inborn errors of metabolism (IEM).
Observation:
- A family presented with extensive Mongolian spots affecting multiple members across generations.
- The condition exhibited a clear autosomal dominant inheritance pattern.
- Lesions were present at birth, extensive on trunk and extremities, and faded by puberty.
Findings:
- The study identified thirteen individuals within a single family with extensive Mongolian spots.
- Autosomal dominant inheritance was confirmed as the mode of transmission for these persistent birthmarks.
- The observed pattern suggests a genetic basis for extensive Mongolian spots in this cohort.
Implications:
- Understanding the natural history and inheritance of extensive Mongolian spots is crucial for diagnosis.
- Early identification aids in screening for associated metabolic diseases like IEM and Mucopolysaccharidosis.
- Recognizing this genetic pattern can improve patient prognosis through timely intervention.
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