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GTR Home > Conditions/Phenotypes > MYH7-related skeletal myopathy

Summary

Excerpted from the GeneReview: Laing Distal Myopathy
Laing distal myopathy is characterized by early-onset weakness (usually before age 5 years) that initially involves the dorsiflexors of the ankles and great toes and then the finger extensors, especially those of the third and fourth fingers. Weakness of the neck flexors is seen in most affected individuals and mild facial weakness is often present. After distal weakness has been present for more than ten years, mild proximal weakness may be observed. Life expectancy is normal.

Genes See tests for all associated and related genes

  • Also known as: CMD1S, CMH1, CMYP7A, CMYP7B, MPD1, MYHCB, SPMD, SPMM, MYH7
    Summary: myosin heavy chain 7

Clinical features

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