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Myositis-Specific Antibodies Identified
The idiopathic inflammatory myopathies (IIM) encompass eight categories: 1) dermatomyositis (DM) in adults, 2) juvenile dermatomyositis, 3) amyopathic DM, 4) cancer-associated DM, 5) polymyositis, 6) immune-mediated necrotizing myopathy, 7) inclusion body myositis, and 8) overlap myositis.1 These categories help classify the myopathies based on clinical and histologic features. The incidence of IIM is estimated at…
Autoantibodies in Autoimmune Myopathy
In recent years, scientists and clinicians have learned a great deal about autoantibodies occurring in idiopathic inflammatory myopathies (IIMs). These new discoveries have reshaped our understanding of distinct clinical phenotypes in IIMs. Scientists continue to learn more about how these autoantibodies shape pathophysiology, diagnosis, disease monitoring, prognosis and optimum treatment. Moving forward, these autoantibodies will…
The Mystery of IVIg
Although initially given as replacement therapy for patients with primary and secondary immunodeficiency states, intravenous immunoglobulin (IVIg) has proven to be effective in the treatment of various autoimmune and inflammatory disorders. This success has led to a dramatic increase in the use of IVIg, with its use as an antiinflammatory agent now vastly surpassing its use in the treatment of immunodeficiencies. Even so, the basis for the antiinflammatory activity of IVIg remains unclear.
New Tools for Myositis Diagnosis, Classification & Management
CHICAGO—At Hot Topics in Myositis, a session at the 2018 ACR/ARHP Annual Meeting, three experts discussed new classification criteria for idiopathic inflammatory myopathies (IIM) and offered practical primers on overlap myositis conditions and inclusion body myositis (IBM). New Myositis Classification Criteria After a 10-year development process, the new EULAR/ACR Classification Criteria for Adult and Juvenile…