Approach to myopathy. Dr omid yaghini. MUSCLES DISORDERS. Definition: Diseases involving the muscle fibers (myogenic) Unlike: neuronopathies : secondary to LMN Heterogenous etiology, genotype, phenotype… No specific treatment for most of them.
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Disorders of glycolysis
Disorders of oxidative metabolism
Acquired metabolic myopathies
“Climbing up himself”
Muscle weakness: main feature
Gower’s sign (proximaly dominating deficit)
Contractures +/- severe: advanced stages
Pain: in inflamm. Disorders only
Atrophy (+/- pseudohypertrophy in X-linked)
Deformity: advanced disease
DTR: normal, diminished or absent
Tone: slightly or normal
Other systems may be involved