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Clinical presentation and evaluation of dermatomyositis
Umaima Marvi1, Lorinda Chung, David F Fiorentino
1Division of Immunology and Rheumatology, Stanford University, USA.
Indian Journal of Dermatology
|November 1, 2012
Summary
Dermatomyositis (DM) is an immune-mediated inflammatory disease affecting skin and muscles. Early evaluation for associated malignancy is crucial for patients diagnosed with DM.
Area of Science:
- Immunology
- Rheumatology
- Dermatology
Background:
- Dermatomyositis (DM) is a chronic inflammatory disorder impacting skin and muscles.
- Evidence indicates DM is immune-mediated, with 50-70% of patients having myositis-specific auto-antibodies.
- Interferon signaling is upregulated in DM patients' muscle, blood, and skin.
Purpose of the Study:
- To review the immunopathogenesis of DM.
- To summarize clinical manifestations of DM.
- To outline the evaluation of DM patients.
Main Methods:
- Review of existing literature on DM.
- Analysis of gene expression data.
- Summary of clinical presentation and diagnostic methods.
Main Results:
- DM presents with proximal muscle weakness and characteristic skin lesions (e.g., heliotrope rash, Gottron's papules).
- Associated conditions include interstitial lung disease, dysphagia, and Raynaud phenomenon.
- DM patients have a 3-8 times increased risk of malignancy.
Conclusions:
- DM is an immune-mediated disease with diverse clinical manifestations.
- Comprehensive evaluation including malignancy screening is essential for DM patients.
- Understanding immunopathogenesis guides clinical management and diagnosis.
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