BRAF and metastatic malignant neoplasm in the lymph nodes: Univariate analysis showed that the proportion of BMI<25kg/m2, multiple foci, bilateral foci, diameter >0.5cm, and HT in the LNM group was significantly higher than those of the non-lymph node metastasis group (all p<0.05), while there were no statistically significant differences in extracapsular invasion, BRAF gene mutation rate, distant metastasis, risk stratification for recurrence, and TNM stage (all p >0.05).