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GTR Home > Conditions/Phenotypes > Spinal muscular atrophy with congenital bone fractures 2

Summary

Spinal muscular atrophy with congenital bone fractures is an autosomal recessive severe neuromuscular disorder characterized by onset of severe hypotonia with fetal hypokinesia in utero. This results in congenital contractures, consistent with arthrogryposis multiplex congenita, and increased incidence of prenatal fracture of the long bones. Affected infants have difficulty breathing and feeding and often die in the first days or months of life (summary by Knierim et al., 2016). For a discussion of genetic heterogeneity of spinal muscular atrophy with congenital bone fractures, see SMABF1 (616866). [from OMIM]

Genes See tests for all associated and related genes

  • Also known as: ASC1p50, CGI-18, SMABF2, p50, ASCC1
    Summary: activating signal cointegrator 1 complex subunit 1

Clinical features

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