Overlap myositis
ORPHA:206572· ICD-10 M33.2
Definition
A rare idiopathic inflammatory myopathy (IIM) with a heterogeneous phenotype characterized by myositis with at least one clinical and/or autoantibody overlap feature. Possible clinical overlap features include polyarthritis, Raynaud's phenomenon, sclerodactyly, scleroderma (proximal to metacarpophalangeal joints), lung interstitial pneumonia, and/or clinical signs of systemic lupus erythematosus (SLE).
- Prevalence
- Unknown
- Inheritance
- Not applicable
- Age of onset
- Adult