For FCN3, the frequency of the GG genotype of rs3813800 was significantly less among LN patients (39.7%) compared with non-LN patients (58.3%) (OR, 0.47 [95% CI, 0.26 to 0.85]; P = 0.012), in addition to a low frequency of the minor G allele among LN patients (61.8%) compared with non-LN patients (74.6%) (OR, 0.55 [95% CI, 0.35 to 0.86]; P = 0.008). Here, FCN3 is linked to lobular neoplasia.