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Marshall-Smith syndrome: new radiographic, clinical, and pathologic observations
G F Eich1, M M Silver, R Weksberg
1Department of Radiology, Hospital for Sick Children, University of Toronto.
Radiology
|October 1, 1991
Summary
This study describes three infants with accelerated skeletal maturation, presenting features similar to Marshall-Smith syndrome but with unique ear and bone abnormalities. Further research is needed to determine if these represent variations or a distinct skeletal disorder.
Area of Science:
- Pediatric Radiology
- Skeletal Dysplasias
- Genetics
Background:
- Marshall-Smith syndrome (MS) is characterized by skeletal overgrowth and distinctive facial features.
- Accurate diagnosis and understanding of MS spectrum are crucial for patient management.
Purpose of the Study:
- To describe radiographic, clinical, and histologic findings in three infants with a syndrome of accelerated skeletal maturation.
- To compare these findings with known Marshall-Smith syndrome.
- To investigate potential new skeletal abnormalities or a separate disorder.
Main Methods:
- Case series analysis of three infants (two infants, one neonate).
- Review of radiographic, clinical, and histologic data.
- Comparison with established criteria for Marshall-Smith syndrome.
Main Results:
- Patients exhibited profoundly accelerated skeletal maturation resembling MS syndrome.
- Distinctive features included dysmorphic ears and generalized skeletal abnormalities suggestive of bone dysplasia.
- Significant findings included craniocervical junction instability and severe spinal stenosis.
Conclusions:
- The observed abnormalities may represent uncommon manifestations within the Marshall-Smith syndrome spectrum.
- Alternatively, these findings could indicate a distinct, previously unrecognized skeletal disorder.
- Further investigation is warranted to clarify the nosological status of this condition.