This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Saethre-Chotzen syndrome is a genetic condition characterized by the premature fusion of certain skull bones (craniosynostosis). This early fusion prevents the skull from growing normally and affects the shape and symmetry of the head and face. Other features may include webbing of certain fingers or toes (syndactyly), small or unusually shaped ears, short stature, and abnormalities of the bones in the spine (the vertebrae). The signs and symptoms of Saethre-Chotzen syndrome vary widely, even among affected individuals in the same family. Mutations (variants) in the TWIST1 gene cause most cases of Saethre-Chotzen syndrome. The condition is inherited in an autosomal dominant pattern. In some cases, an affected person inherits the mutation from one affected parent. Other cases may result from new mutations in the gene. Treatment is aimed at addressing the symptoms found in each individual and may require the coordinated efforts of a team of specialists. Surgery is often needed to prevent or correct early closure of the cranial sutures and correct certain craniofacial abnormalities, syndactyly and/or skeletal defects.
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