Related Experiment Video
Updated: Jan 14, 2026

Detection of Anti-MDA5 Autoantibodies Using HeLa Cells and Immunocytochemistry with Light Microscopy
Published on: October 31, 2025
Idiopathic inflammatory myopathies-a review
Jonathan Jones1, Robert Wortmann
1Section of Rheumatology, Department of Medicine, Geisel School of Medicine, Dartmouth College, One Medical Center Drive, Lebanon, NH, 03756, USA, jonathan.d.jones@dartmouth.edu.
Idiopathic inflammatory myopathies (IIM) are autoimmune diseases causing muscle weakness and extra-muscular symptoms. Diagnosis involves clinical evaluation, blood tests, imaging, and biopsy, with various treatments available.
Area of Science:
- Rheumatology
- Neurology
- Immunology
Background:
- Idiopathic inflammatory myopathies (IIM) are autoimmune disorders impacting muscles and causing systemic effects.
- Proximal muscle weakness is a hallmark symptom, often accompanied by skin, lung, and joint issues.
- An elevated risk of malignancy is associated with IIM.
Purpose of the Study:
- To provide a comprehensive overview of idiopathic inflammatory myopathies (IIM).
- To discuss the diverse clinical manifestations, including muscle and extra-muscular involvement.
- To review diagnostic approaches and available treatment options for IIM.
Main Methods:
- Literature review of diagnostic tools for IIM.
- Analysis of clinical presentation and extra-muscular manifestations.
- Summary of current treatment strategies for IIM.
Main Results:
- IIM presents with proximal muscle weakness and various extra-muscular symptoms.
- Diagnostic workup includes autoantibodies, muscle enzymes, MRI, ultrasound, and biopsy.
- Malignancy risk is increased in IIM patients.
Conclusions:
- IIM requires a multi-faceted diagnostic approach.
- Early diagnosis and management are crucial for improving patient outcomes.
- Treatment strategies are tailored to individual patient needs and disease severity.
Related Concept Videos
Myocarditis I: Introduction
Myocarditis II: Clinical Features and Diagnostic Tests
Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
Myasthenia Gravis: Overview and Treatment
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...

