No significant difference was found in TET1 expression between N0 (no proximal lymph-node metastasis), N1 (one to two proximal lymph-node metastases), N2 (three to six), and N3 (seven or more) GTs and NMs, but we detected a significant decrease in TET1 in N1-2 or N3 GTs compared with N0 GTs or NMs (Figure 1F). The gene discussed is TET1; the disease is metastatic malignant neoplasm in the lymph nodes.