Conditions / Genetic

congenital myasthenic syndrome 21

info ยท Genetic

A congenital myasthenic syndrome characterized by autosomal recessive inheritance of hypotonia, apneas, and feeding difficulties that has_material_basis_in homozygous or compound heterozygous mutation in the SLC18A3 gene on chromosome 10q11.

Signs and symptoms

  • Ptosis
  • Ophthalmoplegia
  • Exercise intolerance
  • Meconium ileus
  • Gait disturbance
  • Easy fatigability
  • Feeding difficulties
  • Hypotonia
  • Respiratory insufficiency
  • Fatigue

Also known as: CMS21; congenital myasthenic syndrome 21, presynaptic