Table 2 shows the correlations between cyclin B1 and other tumour features. Ductal and medullary histology were significantly more common among tumours with high than low cyclin B1 expression (P<0.0005 and P=0.0008, respectively), and lobular histology among tumours with low cyclin B1 expression (P<0.0005). Here, CCNB1 is linked to neoplasm.