EGFR and non-small cell lung carcinoma: EGFR mutations are most common in Asian populations, with a prevalence of up to 50%.[13] Hsu et al.[14] reported that the incidence of BM was similar between patients with EGFR mutations and those with wild‐type EGFR (30.6% vs 25.1%, p = 0.36) in newly diagnosed stage IV NSCLC.