Some somatic variants of certain genes, including EGFR, ALK, ROS1, KRAS, BRAF, RET, MET, ERBB2, NTRK, TP53, and PI3KCA, have been identified as common driver mutations in the NSCLC National Comprehensive Cancer Network (NCCN) guidelines (version 3.2022). This evidence concerns the gene RET and non-small cell lung carcinoma.