The results showed that CMTM6 expression was significantly correlated with tumor T stage (chi-square: 9.729, df: 2, p = 0.008) and lymph node metastasis (chi-square: 5.593, df: 1, p = 0.018) and had no clinical correlation with other clinical indicators (Table 2). The gene discussed is CMTM6; the disease is metastatic malignant neoplasm in the lymph nodes.