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Investigations

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Features on investigation include:

  • normal or slightly raised creatinine kinase
  • abnormal motor neurone studies - which distinguishes this condition from muscular dystrophies
  • electromyography, which shows fibrillation potentials, and features of denervated muscle
  • muscle biopsy may reveal neurogenic atrophy

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