Moreover, we also found that patients with positive lymph node also had the larger tumor represented by the tumor diameter than those with negative lymph node ones (≥1 cm: 40.7% vs. 25.7%, p = 9.197e‐05, Figure 2F), as well as the presence of RET genetic alteration (16.3% vs. 2.7%, p = 2.566e‐03, Figure 2E). This evidence concerns the gene RET and neoplasm.