TRIM21 and myositis disease: The extractable nuclear antibody (ENA) panel showed positive results for anti-RNP (>644, normal range <20 CU), anti-SM (>694, normal range <20 CU), and SSA Ro60 (170, normal range <20 CU), as represented in Table 2. All myositis-specific antibodies and myositis-associated antibodies were negative, except for anti-Ku, as shown in Table 3.