TRIM21 and myositis disease: The autoimmune serum profile for specific myositis autoantibodies was investigated: ANA, anti-Mi2/alpha and beta nucleosome remodeling and deacetylase complex, anti-SRP, PL7, PL-1, EJ, OJ, Jo 1, PM-Scl100 and PM-Scl75, Ro-52, NXP2, TIF 1g, SAE1 and MDA5 resulted inconclusively.