For example, Cohen et al. [10] found that BRAF V600E mutation is closely related to neck lymph node metastasis in PTC patients, while Hong et al. [11] believed that BRAF V600E gene mutation detection results of FNAC-obtained thyroid node samples could not effectively predict central neck lymph node metastasis and thyroid extracapsular invasion in PTC patients. This evidence concerns the gene BRAF and metastatic malignant neoplasm in the lymph nodes.