Hong Kong study Myositis-specific autoantibodies in 201 pts with idiopathic inflammatory myopathies (IIM) shows MDA-5 (14%), TIFF-1γ (14%), Jo-(12.4%). MDA5 seen w/ DM, digital ulcers, amyopathy, ILD. TIF1γ was associ w/ refractory rash and cancer https://t.co/3E365F5SON