The incidence of lung cancer is increasing in Taiwan, and it is the leading cause of cancer-related death worldwide.1,2 Asian lineage, never-smoker, and adenocarcinoma histology are well-known predictors of nonsmall cell lung cancer (NSCLC) patients harboring epidermal growth factor receptor (EGFR) mutations.3–8. Here, EGFR is linked to lung carcinoma.