The expression levels of CCNB1, ESPL1, CENPM, BLM, and ASPM were 4.795-, 5.028-, 8.691-, 2.083-, and 3.725-fold higher in BC than in normal tissues (p = 3.86E−13, 5.92E−20, 5.91E−26, 5.19E−14, and 2.56E−13). The gene discussed is BLM; the disease is breast cancer.