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[Juvenile dermatomyositis]
1Servicio de Neurología, Hospital Nacional de Niños "Dr. Carlos Sáenz Herrera", San José, Costa Rica. sellma@racsa.co.cr
Insights
Juvenile dermatomyositis is an autoimmune disease causing inflammation in muscles and skin, primarily affecting children. Autoimmune-driven vasculitis damages blood vessels, leading to potential complications.
Area of Science:
- Rheumatology
- Pediatrics
- Immunology
Context:
- Juvenile dermatomyositis (JDM) is a rare idiopathic inflammatory myopathy affecting children.
- It presents as a multisystemic inflammatory condition primarily impacting muscles and skin.
- The incidence is approximately 4 per million, with a higher prevalence in females and Caucasian populations, typically manifesting between 5 and 14 years of age.
Purpose:
- To describe the key characteristics of juvenile dermatomyositis.
- To highlight the underlying autoimmune vasculitis mechanism.
- To outline potential complications and neuropathic manifestations.
Summary:
- JDM involves acute or chronic inflammatory injury affecting muscles and skin.
- The etiology remains unknown, but autoantibody-induced vasculitis is recognized as the cause of microvasculature damage.
- Rare complications include neuropathic manifestations like cerebral vasculitis and peripheral neuropathy, stemming from the same autoimmune process.
Impact:
- Understanding JDM's autoimmune basis is crucial for diagnosis and management.
- Recognizing vasculitis as a key factor aids in predicting and potentially mitigating complications.
- Further research into JDM etiology and treatment is warranted.
Abstract:
Juvenile dermatomyositis is part of the idiopathic inflammatory myositis group of diseases, presenting acute or chronic multisystemic inflammatory injury, that mainly affects muscles and skin. It s incidence is 4/1,000,000, prevailing in women and Caucasians, with symptoms starting between 5 14 years of age. The etiology is unknown, nevertheless is well recognized the role of vasculitis produced by autoantibodies, such is responsible for the damage on skin and muscular microvasculature. The acute or chronic complications and the neuropathic manifestations (cerebral vasculitis and peripheric neuropathy) are rare, and both are the result of the same autoimmune vasculitis injury.