NKD1 and metastatic malignant neoplasm in the lymph nodes: The reduced NKD1 expression was correlated with histological type (P = 0.003), poor differentiation (P = 0.004), lymph node metastasis (P = 0.013), TNM stage (P = 0.002) and poor survival (62.88 ± 3.23 versus 23.61 ± 2.18 months, P = 0.03).