TERT and cancer: Despite the widespread application of RAS variants in panel tests, assays of RAS variants often yield inconclusive results in detecting malignancy of thyroid nodules, frequently leading to a diagnostic surgery.2,12,18 On the contrary, BRAF V600E and TERT promoter variants (C228T and C250T) are the most frequently detected genetic variants in thyroid nodules, providing a more definitive basis for cancer diagnosis.19,20,21