Moreover, YKL-40 levels were not significantly different between B-cell (n = 25, median YKL-40 = 384.9 pg/mL) and T-cell lymphomas (n = 5, median YKL-40 = 527.0 pg/mL) (p = 0.448). This evidence concerns the gene CHI3L1 and T-cell non-Hodgkin lymphoma.