RET and neoplasm: In multivariate analysis, the tall-cell subtype (OR = 6.06, 95% CI = 2.15–20.49, p = 0.032), tumor size 2 < T ≤ 4 cm and large tumor size >4 cm (OR = 1.02, 95% CI = 0.00–1.53, 0.00–0.87; p = 0.020 and 0.042, respectively), perineural invasion (OR = 24.64, 95% CI = 1.18–515.96; p = 0.039) lymphatic invasion (OR = 44.11, 95% CI = 2.11–922.55; p = 0.015), were significant independent predictive factors of NCOA4::RET (Table 3).