Concerning characteristics as aggressiveness, invasion, tumour size, and multifocality, the quantitative analysis showed that NEK1 expression was higher in tumours in which there was multifocality (175.54 ± 18.82) than in cases without multifocality (170.32 ± 17.45 - p = 0.0233); and was more expressed in patients with lymph node metastasis (p = 0.0239) (Table 3). The gene discussed is NEK1; the disease is neoplasm.