Most patients and HC showed positive values for anti-EBNA IgG (76.5% of SjS; 80.0% of RA and 85.0% of HC), and negative values for anti-VCA IgA (79.4% of SjS; 75.0% of RA and 80.0% of HC), without significant differences between groups. Here, CD79A is linked to Schwartz-Jampel syndrome.