Antisynthetase syndrome (AS) is strongly associated with the presence of antibodies to aminoacyl-transfer RNA (tRNA) synthetases (ARSs) that are implicated in the pathogenesis of myositis and interstitial lung disease (ILD). Antibodies against eight antisynthetases have been identified and are detected in 16–26% of patients with idiopathic inflammatory myopathies (IIM).1 Serum assays for five of these…
Erdheim-Chester disease (ECD) is a rare, non-Langerhan’s cell histiocytosis characterized by tissue infiltration of CD68-positive and CD1a-negative foamy histiocytes.1 ECD was discovered as a lipid granulomatosis in 1930 by Jakob Erdheim and his pupil, William Chester, and approximately 500 cases have been described to date.1 ECD has a heterogeneous course and prognosis ranging from an…
SAN FRANCISCO—The Kveim-Siltzbach skin test for a diagnosis of sarcoidosis was developed in 1941, then popularized in 1961. Since then, the knowledge base about the disease has not expanded much, said Kristin Highland, MD, who has dual appointments at Cleveland Clinic’s Respiratory Institute and Orthopedics and Rheumatology Institute. “We don’t know a whole lot more…
SAN FRANCISCO—Metabolomics could one day be a treasure map of information about inflammation in rheumatic disease. There are many metabolic pathways to pursue for clues on how to reverse this damaging process. “All of these signaling pathways are interrelated and affect each other,” said Douglas J. Veale, MD, director of translational research at Dublin Academic…
Fever in rheumatology patients may present evidence of an inflammatory process