中文摘要：

目的分析中年原发性支气管肺癌的临床特征。方法回顾性分析中年（41—60岁）原发性支气管肺癌患者112例临床资料。结果112例中，原发性支气管肺癌以ⅠA期为主，男性多见；临床上多因体检发现肺部病灶就诊，无明显症状；解剖学分型以周围型为主；组织学分型以腺癌为主；长期大量吸烟是男性肺癌的好发因素。结论中年人原发性支气管肺癌以男性居多，周围型腺癌为主；长期大量吸烟是男性肺癌发生的重要诱因。

英文摘要：

Objective To investigate the clinical features of 112 cases with primary bronchial carcinoma in middle-aged patients. Methods Data of 112 patients,aged 41-60 years old,with primary bronchial carcinoma diagnosed by pathology were retrospectively analyzed. Results Among 112 patients, most cases were in stageⅠ A, and occurred in males. Most patients were found by physical examination without obvious clinical symptoms. Peripheral type was the most common anatomic classification, while adenocat, cinoma was the most common histological diagnosis. The heavy smoking history for a long time was one of the leading factors for males with primary bronchial carcinoma. Conclusion Most middle-aged people with primary bronchial carcinoma are males. Peripheral adenocarcinoma is a predominant pathological type. The long-term heavy smoking factor for inducing the occurrence of primary bronchial carcinoma in male. is an important