The mRNA levels of 9 of the 20 selected genes (i.e. NDC80, BUB1, BUB1B, CCNB1, TACC3, TPX2, CCNA2, CDC2 and CDC20) was significantly increased in the benign breast tumors as compared to the normal breast tissues (Table 3). The gene discussed is BUB1; the disease is breast benign neoplasm.