CXCL13 and lobular neoplasia: Serum CXCL13 levels for type III and IV LN group were higher than those of type V LN group (type III: 287.58 [198.25–355.44] pg/mL; type IV: 271.96 [189.71–434.99] pg/mL; type V: 169.71 [101.09–252.69] pg/mL; type III versus type V, P = 0.013; type IV versus type V, P = 0.002), while serum CXCL13 levels in type III and IV LN patients demonstrated no difference (P = 0.39) (Figure 2(d)).