TRIM21 and dermatomyositis: Female, DM, Gottron papules, mechanic’s hands, fever, heliotrope rash, dysphagia, V sign, shawl sign, skin ulceration, periungual erythema, muscle weakness, anti-MDA5, anti-Ro-52, anti-Jo-1, anti-TIF1-γ, anti-ARS, anti-Ku, CK (elevated), CRP (elevated > 2.78 mg/L), LDH (elevated), ESR (elevated), AST (elevated), ALT (elevated), age