Mutations in EGFR (epidermal growth factor receptor 1) and KRAS (Kirsten rat sarcoma viral oncogene homolog GTPase) and ALK (anaplastic lymphoma kinase) rearrangements are mostly found in lung adenocarcinoma, accounting for 30–40% of NSCLCs [62]. The gene discussed is EGFR; the disease is lung adenocarcinoma.