Polymyositis

Associations

Appropriate Tests

 

The diagnosis is made on the basis of clinical features, raised Creatine kinase, electromyography and Muscle biopsy. Antinuclear Ab, Extractable nuclear antigen Ab, (Jo-1 Ab, PM-SCL Ab), C-Reactive protein or Erythrocyte sedimentation rate.

Connective tissue diseases, especially

 

  • SLE

 

  • Scleroderma

 

  • Mixed connective tissue disease

 

  • Dermatomyositis