The NF-kB immunostaining was significantly higher in tumour and lymph node metastasis than in MSR squamous epithelium (p<0.001), and the TNF-α immunostaining was significantly higher in tumour than in lymph node metastasis and MSR squamous epithelium (p<0.001). Here, NFKB1 is linked to metastatic malignant neoplasm in the lymph nodes.