Myositis
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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| Myositis | |
|---|---|
| Synonyms | N/A |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Muscle weakness, muscle pain, fatigue |
| Complications | Difficulty swallowing, respiratory issues |
| Onset | Gradual |
| Duration | Long-term |
| Types | Polymyositis, Dermatomyositis, Inclusion body myositis |
| Causes | Autoimmune, infections, medications |
| Risks | Genetic predisposition, age, gender |
| Diagnosis | Muscle biopsy, Blood test for creatine kinase, Electromyography |
| Differential diagnosis | Muscular dystrophy, Amyotrophic lateral sclerosis, Multiple sclerosis |
| Prevention | N/A |
| Treatment | Corticosteroids, Immunosuppressants, Physical therapy |
| Medication | Prednisone, Methotrexate, Azathioprine |
| Prognosis | Variable, depends on type and response to treatment |
| Frequency | Rare |
| Deaths | N/A |
Myositis[edit | edit source]
Myositis is inflammation or swelling of the muscles. Injury, medicines, infection, or an immune disorder can lead to myositis.[1] It is a documented side effect of the lipid-lowering drugs statins and fibrates.
Types[edit | edit source]
Types of myositis include:
- myositis ossificans
- (idiopathic) inflammatory myopathies
dermatomyositis * juvenile dermatomyositis polymyositis inclusion body myositis benign acute childhood myositis Statin-associated autoimmune myopathy
Diagnosis[edit | edit source]
Elevation of creatine kinase in blood is indicative of myositis.
Treatment[edit | edit source]
Polymyositis and dermatomyositis are first treated with high doses of corticosteroids.
See also[edit | edit source]
- myopathy (muscle disease)
- myalgia (muscle pain)
- Masticatory muscle myositis (a disease in dogs)
- perimyositis
References[edit | edit source]
External links[edit | edit source]
| Classification | |
|---|---|
| External resources |
- Myositis: NIH
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Contributors: Kondreddy Naveen, Prab R. Tumpati, MD
