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Antisynthetase syndrome was first described by Marguerie et al as a combination of polymyositis (or at least creatine kinase elevation), diffuse interstitial lung disease and autoantibodies to t-RNA synthetase.1
Joint signs and symptoms occur in up to 90% of patients with polymyositis or dermatomyositis2 and/or antisynthetase syndrome, occasionally as the initial manifestations. They include arthralgia, polyarthritis and deforming arthropathy with subluxation.
To establish a multicentre registry of patients with joint manifestations of antisynthetase syndrome, a standardised form was posted on the CRI (Club Rhumatismes et Inflammation) website (http://www.cri-net.com), which is part of the French Society for Rheumatology, with the partnership of the French Society of Internal Medicine.
During a …