TRIM21 and sarcoidosis: When ANA and ENA positivity was assessed in the 3 subgroups, 11 sarcoidosis patients were ANA positive (42.3%, 4 patients displaying a 1:80 titre, four a 1:160 titre and three a 1:320 titre) with only one patient showing ENA (3.8%) positivity (in particular, Ro52); only 4 HCs presented ANA positivity (13.3%), but no ENA.