CD79A and urethra adenocarcinoma: When analyzing immunoglobulin serum levels at diagnosis in the different cohorts, IgA levels were directly associated with serum κ and λ chain concentrations in CVID (R2 0.03 p < 0.0001 and R2 0.07 p < 0.0001, respectively) and UAD (R2 0.25, p < 0.0001, R2 0.25, p < 0.0007), but not in LPDs and SID (Figures S1A,B).