Furthermore, no statistically significant differences in XPO1 expression were detected by comparing lymphomas with high cytoplasmic to specimens with low or no cytoplasmic NR4A1 levels (p = 0.601, Fig. 2d) suggesting that overexpression of XPO1 might not be the sole reason for the cytoplasmic localization of NR4A1 in aggressive lymphomas. This evidence concerns the gene NR4A1 and lymphoma.