HOXA9 and diffuse large B-cell lymphoma: BLS type of DLBCL (n = 9) correlated with presence of B symptoms (Kendall’s tau correlation coefficient r = 0.526, p < 0.001), elevated serum LDH level (> 200 IU/L, r = 0.310, p = 0.029), expression of NANOG (r = 0.332, p = 0.015) and HOXA9 (r = 0.462, p < 0.001), high-stage disease (III-IV, r = 0.326, p = 0.017), and bone marrow involvement (r = 0.474, p = 0.001).