In a study conducted by Carrillo Ballesteros et al., BAFF expression exhibited a homogeneous distribution across the minor salivary glands of 29 patients, which included 4 NSCS cases, 2 NSCS-pSS cases, 16 pSS cases without germinal centers (GCs), and 7 pSS cases with germinal centers. This evidence concerns the gene TNFSF13B and peeling skin syndrome.