Clinical characteristics of lung cancer confirmed by bronchoscopy: An analysis of 516 patients

Objective To study the clinical characteristics of lung cancer under bronchoscope. Methods Clinical characteristics of 516 patients with lung cancer confirmed by bronchoscopy were retrospectively analyzed. Results Of the 516 patients with lung cancer,384 were male and 132 were female（2.91:1）,237（45.93%）had squamous cell carcinoma,158（30.62%） had small cell carcinoma,110（21.32%）had adenocarcinoma,and 11（2.13%） had other tumors.The detection rate of squamous cell carcinoma was higher while that of small cell carcinoma was lower in old-aged group than in middle-aged group.The lung cancer was mainly located in the right lung and its incidence was higher in upper lobes than in lower lobes.Bronchoscopy showed direct signs of lung cancer in 89.15% patients,proliferative squamous cell carcinoma in 68.78% patients,proliferative small cell carcinoma in 53.16% patients,and infiltrative adenocarcinoma in 48.62% patients,respectively. Conclusion The clinical features of lung cancer are non-specific.Bronchoscopy is an important approach in diagnosis of lung cancer.