Furthermore, Pearson's χ2 test showed that the abnormal expression of DEK protein was significantly associated with clinical stage (P=0.016), differentiation (P=0.000) and lymph node metastasis (P=0.000), but not with other clinicopathological parameters, including age, menopausal status or tumor size (Table 2, Figure 1C). The gene discussed is DEK; the disease is metastatic malignant neoplasm in the lymph nodes.