muscle biopsy
muscle biopsy
A biopsy from muscle in patients with symptoms attributable to neuromuscular disease, which may be primary (e.g., dystrophies or myopathies), secondary (e.g., drug-related, endocrine, neurologic or muscular) or systemic (e.g., necrotising vasculitis).Special studies
Biochemical analysis, EM, histochemistry, immunohistochemistry, molecular tests; the site selection is critical, as is handling and transport.
Role of muscle biopsy
Differentiate between neurologic and myopathic disease; diagnose myositis, degenerative disease (Duchenne’s muscular dystrophy), or conditions induced by exogenous toxins (e.g., alcohol-induced polymyopathy).