病儿，男，７岁，因反复咳嗽、咳痰５年入院。５年前起反复出现咳嗽、咳痰伴不规则发热，每年发作６至７次，数次胸片检查均诊断为右下肺炎，经抗菌治疗症状可好转，但间歇期仍常有轻度咳嗽。近２年咳嗽加重，有时咳出多量稠痰，并先后咯血４次，量多时达１００ ｍＬ。１年前胸 Sick child, male, 7 years old, due to repeated cough, sputum admitted for 5 years. 5 years ago, recurrent cough, sputum with irregular fever, seizures 6 to 7 times a year, several chest X-ray examination were diagnosed as right lower pneumonia, the symptoms may be improved after antibacterial treatment, but intermittent periods are often mild cough . Cough increased in the past 2 years, and sometimes cough thick mucus, and hemoptysis has 4 times, the amount of up to 100 mL. 1 year ago chest