courtesy ACR Daily News
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 Idiopathic Inflammatory Myopathies and Their Major Subgroups was published in 2017.1 These criteria reflect updated knowledge of the myositis disease spectrum and included 976 myositis cases and 624 comparators contributed by 47 rheumatology, dermatology, neurology and pediatric clinics worldwide, said Ingrid E. Lundberg, MD, PhD, a professor in the Division of Rheumatology at Karolinska Institute, Karolinska University Hospital, Sweden.
“Inflammatory myopathies are a heterogeneous group of diseases, now with several subdiagnoses that have been identified. There are a number of new autoantibodies that have been identified. It’s recognized that extramuscular organ involvement is frequently seen in patients,” said Dr. Lundberg.
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