Related Experiment Videos
[Acceleration of bone maturation and dysmorphic syndrome in 2 siblings (Marshall-Weaver syndrome)]
Insights
Two siblings presented with a complex syndrome including unusual facial features and accelerated skeletal maturation. Findings suggest Marshall-Smith and Weaver syndromes may be a single genetic disorder inherited in an autosomal recessive pattern.
Area of Science:
- Genetics
- Pediatrics
- Radiology
Background:
- Marshall-Smith syndrome and Weaver syndrome are rare genetic disorders.
- Both syndromes are characterized by distinctive facial features, developmental delays, and skeletal abnormalities.
Observation:
- Two siblings, a brother and sister, presented with a complex syndrome.
- The syndrome included unusual facies, restricted joint movement, and accelerated skeletal maturation evident at birth.
- Both infants died at a very young age (10 days and 6 weeks).
Findings:
- Clinical and radiological findings in these siblings overlap significantly with both Marshall-Smith syndrome and Weaver syndrome.
- This overlap suggests that Marshall-Smith syndrome and Weaver syndrome may represent a single clinical entity.
- The occurrence in siblings from unaffected parents supports an autosomal recessive inheritance pattern.
Implications:
- Consolidating Marshall-Smith and Weaver syndromes could refine diagnostic criteria and genetic counseling.
- Further research into the genetic basis of this condition is warranted.
- Understanding this syndrome can improve early recognition and management of affected infants.
Abstract:
This paper relates two cases of a complex syndrome with unusual facies, restricted articular movements and accelerated skeletal maturation (already present at birth) in two siblings (brother and sister). These infants died in early age: one was ten days, the other six weeks old. Clinical and radiological findings of these newborns are part of both the Marshall-Smith and the Weaver syndrome, suggesting that these syndromes are one entity. The observation of affected siblings from unaffected parents favors autosomal recessive inheritance.