Finally, because this study included patient information for more than 5 years, during which time the diagnostic techniques for thyroid carcinoma have been improving, and in recent years, our institution has routinely performed preoperative BRAF V600E mutation detection by PCR on puncture specimens of suspicious nodes, which may differ from the results obtained by immunohistochemistry on postoperative pathology specimens in the past, we did not include molecular science such as BRAF V600E. The gene discussed is BRAF; the disease is thyroid gland carcinoma.