The technique of fluorescent quantitative polymerase chain reaction (FQ-PCR) was employed for detecting the mutation rate of EGFR gene and EML4-ALK fusion gene for 40 cases of superficial lymph node tissue of NSCLC inpatients at General Military Hospital of Beijing PLA Command from February 2013 to November 2014.    ///    The mutation rate of EML4-ALK fusion gene was 2.     ///    The mutation rate of EGFR gene is high in adenocarcinoma and non-smokers while EML4-ALK fusion gene has a low mutation rate..     ///     To explore the mutation status of epidermal growth factor receptor (EGFR) fusion gene and microtubule associated protein like 4-anaplastic lymphoma kinase (EML4-ALK) fusion gene in superficial lymph nodes of non-small cell lung cancer (NSCLC).     ///    [Mutations of EGFR gene and EML4-ALK fusion gene in superficial lymph node of non-small cell lung cancer].. 