Result: Mean age 58.23 years old, men accounted for 83.33%, history smoking accounted for 86.67%, 70% of patients lost weight, 76.67% had chest pain, 60% persistent cough, increased serum cyfra 21 - 1 in 70.0%, CEA 56.67%, adenocarcinoma accounted for 73.33%, squamous cell carcinoma 26.67%.