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Polymyositis
Disease definition
A rare idiopathic inflammatory myopathy (IIM) historically characterized by symmetric proximal muscle weakness, elevated muscle enzymes (creatine kinase), myopathic findings on electromyography, and muscle biopsy showing endomyial infiltration composed mainly of macrophages and lymphocytes. The features are non-specific, thus the disease should be distinguished from similar entities with specific clinical, immunological, histological features, notably dermatomyositis, immune-mediated necrotizing myopathy, anti-synthetase syndrome, inclusion body myositis, and myositis associated with other connective tissue disorder.
ORPHA:732
Classification level: DisorderDetailed information
Article for general public
Professionals
- Summary information
- Suomi (2014, pdf)
- Anesthesia guidelines
- Czech (2016)
- English (2016)
- Español (2019)
- Clinical practice guidelines
- Deutsch (2014)
Additional information
Further information on this disease
Patient-centred resources for this disease
Research activities on this disease
Specialised Social Services
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