Twenty-eight (3.9%) patients harbored the EML4-ALK gene.    ///    Clinicoradiologic characteristics of patients with lung adenocarcinoma harboring EML4-ALK fusion oncogene.    ///    The clinicopathological characteristics of each patient were compared among the subgroups stratified by the EML4-ALK gene status.     ///    We explored the EML4-ALK gene in a relatively large cohort and reviewed the clinicoradiologic background of the patients.     ///    Clinicoradiologic characteristics of patients with lung adenocarcinoma harboring EML4-ALK fusion oncogene..     ///    "Younger age (p=0.001), no or light history of smoking (p=0.05) and normal serum carcinoembryonic antigen (CEA) level (p=0.04) were characteristics of the patients with EML4-ALK."    ///    "Younger age (p=0.001), no or light history of smoking (p=0.05) and normal serum carcinoembryonic antigen (CEA) level (p=0.04) were characteristics of the patients with EML4-ALK. "