Conditions / Genetic

nemaline myopathy 5B

info ยท Genetic

A nemaline myopathy that has_material_basis_in autosomal recessive inheritance of a homozygous or compound heterozygous mutation in the TNNT1 gene on chromosome 19q13, with childhood onset.

Signs and symptoms

  • Elevated circulating creatine kinase activity
  • Rhabdomyolysis
  • Difficulty climbing stairs
  • Hip contracture
  • Minicore myopathy
  • Spinal rigidity
  • Elbow contracture
  • Fatty replacement of ventricular myocardial tissue
  • Delayed gross motor development
  • Ankle contracture