Thus, 10 regions had significant genome-wide (GW) associations with PsA, and 11 with PsC: IFNLR1, IFIH1, and NFKBIA for PsA, and TNFRSF9, LCE3C/B, TRAF3IP2, IL23A, and NFKBIA for PsC, respectively. Here, IFIH1 is linked to pancreatic serous cystadenoma.