Send to:

Choose Destination
See comment in PubMed Commons below
Curr Opin Rheumatol. 2013 Sep;25(5):630-5. doi: 10.1097/BOR.0b013e3283635634.

An update on inflammatory myositis in children.

Author information

  • 1Division of Rheumatology, IWK Health Centre and Dalhousie University, Halifax, Nova Scotia, Canada.



Childhood myositis (juvenile idiopathic inflammatory myopathies - JIIMs) is a rare, but important, group of rheumatic diseases. There has been continuing worldwide progress in the understanding of these diseases, and continuing pursuit of better therapies. We review some important contributions from the recent published literature.


Environmental triggers are present in the majority of children with myositis. Cancer is almost never a cause. Newer findings implicate a host of immunologic aberrations, perhaps driven by type I interferons, in addition to the humoral immunity long associated with juvenile dermatomyositis (JDM). Myositis-specific antibodies, once thought to be rare in JIIM, are now found in a significant minority because of the characterization of new antibodies. Although mortality is low, recent studies highlight the accumulation of tissue damage that occurs in JDM. Biologic therapies have an unclear place in the treatment of JIIM, but new protocols are being studied and may lead to better outcomes. Physical exercise, once controversial, likely has a role to play in treatment.


International work is continuing to expand our knowledge of the JIIM.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Lippincott Williams & Wilkins
    Loading ...
    Write to the Help Desk