Diagnosis:
Muscle biopsy:
- Fibre size variation with angulated fibres (rounded fibres in spinal muscular atrophy)
- Grouped atrophy, bags of nuclei
- Target fibres
- Pseudomyopathic pattern
- Fibre distribution (ATPases): fibre type grouping, grouped atrophy of type 2 and type 1 fibres
- NADH: target fibres, central clearing
Related articles:
- Nerve diseases, neuromuscular disease patterns, radiculopathy, polyradiculopathy, plexopathy (brachial or lumbosacral), mononeuropathy, mononeuropathy multiplex, polyneuropathy,
- Myopathy,