由于早期检测和癌肿疗效的提高,多发原发性支气管癌问题日愈受到重视。多发原发性支气管癌的发现率一般不超过3.5%。但是,作肺癌切除术而存活病例中有10～32%可能发生第二个原发性癌瘤。本病诊断的确立,需要有肿瘤组织学、解削学或时间相隔条件。如其他两项资料是符合的,组织学上相同也是可以接受的。作者报告6例。年龄35～79岁。其出现和组织学类型的不同组合包括:同时出现/不同组织学(4例);同时出现/相同组织学(1例)和异时出现/不同组织学(1例)。5例中有3例X 线胸片同时可见两个肿瘤。例1:异时出现,不同组织学。男、48岁。有吸烟史。进行性吞咽困难和刺激性咳嗽。胸片示右肺门肿块、右下叶浸润和右胸腔积液。吞钡示食管中1/3有外来压迫。活检证实小细胞癌。放疗和 Due to the early detection and the improvement of the curative effect of cancer, the multiple primary bronchogenic cancer problems are getting more and more important. The discovery rate of multiple primary bronchial carcinomas is generally not more than 3.5%. However, 10% to 32% of survivors undergoing lung cancer resection may develop a second primary cancer. The establishment of the diagnosis of this disease requires tumor histology, removal of learning, or time interval conditions. If the other two data are consistent, histologically the same is acceptable. The author reported 6 cases. Age 35 to 79 years old. The different combinations of their appearance and histological types included: concurrent/different histology (4 cases); simultaneous/identical histology (1 case) and allodynia/different histology (1 case). Three of the five patients had X-rays and two tumors. Example 1: Occurrence at different times, different histologies. Male, 48 years old. Have a history of smoking. Progressive dysphagia and irritating cough. The chest radiograph showed a right hilar mass, right inferior lobe infiltrate, and right pleural effusion. Swallowing shows that 1/3 of the esophagus has external pressure. Biopsy confirmed small cell carcinoma. Radiotherapy and