Schwartz-Jampel syndrome: An atypical form?
✍ Scribed by Figuera, Luis E. ;Jimenez-Gil, F. Javier ;García-Cruz, M. Olga ;Cantú, José M.
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 271 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0148-7299
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Schwartz-Jampel syndrome generally presents in childhood with short stature, limited joint mobility, masklike facies with blepharophimosis, myotonia, and often muscle hypertrophy. Few cases with neonatal manifestations have been described. A newborn with severe manifestations is reported and the lit
## Abstract A case of Schwartz‐Jampel syndrome with electrical, radiographic, biopsy, and pharmacological studies is presented along with a summary of the 12 other reported cases. Radiological study showed nonspecific but definite abnormalities. The muscle biopsy revealed myopathic and neurogenic f
## Communicated by Christine Van Broeckhoven Schwartz-Jampel syndrome (SJS) is a rare autosomal recessive condition defined by the association of myotonia with chondrodysplasia. SJS results from mutations in the HSPG2 gene, which encodes perlecan, a major component of basement membranes. Only eigh
Recent studies demonstrated the existence of a genetically distinct, usually lethal form of the Schwartz-Jampel syndrome (SJS) of myotonia and skeletal dysplasia, which we called SJS type 2. This disorder is reminiscent of another rare condition, the Stu ¨ve-Wiedemann syndrome (SWS), which comprises