The further results of the multivariable regression analysis performed by above features, showed that the tumor morphologic appearance on CT (odds ratio [OR], 0.276, 95% confidence interval [CI], 0.085–0.89, p = 0.032), tumor size on CT (OR, 1.036, 95% CI, 1.001–1.071, p = 0.042), LVI (OR, 3.89, 95% CI, 1.63–9.29, p = 0.02), and the presence of PIK3CG mutation compared to wild-type (p = 0.049) were associated with pathologic LN metastasis (Supplementary Table 1, Supplementary Fig. 1B). Here, PIK3CG is linked to neoplasm.