CD19 and peeling skin syndrome: The proportions of CD19+CD24intCD38int mature B cells were significantly elevated in the whole group of pSS patients (mean ± SD: 52.241 ± 15.245% versus 39.628 ± 13.958%, resp., p = 0.0021) and in both of pSS subgroups (pSS glandular: mean ± SD: 50.885 ± 17.618% versus 39.628 ± 13.958%, resp., p = 0.0343; pSS EGMs: mean ± SD: 53.296 ± 13.555% versus 39.628 ± 13.958%, resp., p = 0.0026), compared to control values.