EGFR (Arg255Gln), EGFR (Ala647Thr), EGFR (Leu858Arg), KRAS (Gly12Cys), ALK (Pro254Thr), ALK (Trp288Ser), ALK (Glu797Lys), ROS (Glu1902Lys), PIK3CA (Met1043Ile), ROS (Leu567Val), and ROS (Phe1153Leu) mutations were present only in patients with adenocarcinoma. The gene discussed is KRAS; the disease is adenocarcinoma.