肺曲菌多继发感染于结核陈旧性空洞形成曲菌球,或其他支气管肺疾病残存不可逆性空腔中,如肺脓疡、结节病、肺梗塞、肺癌等的空洞或支气管扩张症、肺囊肿等。临床上呈慢性经过;数年反复咯血或大咯血是其特点,有7～20%严重大咯血致 Pulmonary aspergillosis often secondary to the formation of aspergillosis of tuberculosis, or other irreversible cavity of bronchopulmonary disease, such as empyema or bronchiectasis of pulmonary abscess, sarcoidosis, pulmonary infarction, lung cancer, Pulmonary cysts and so on. Clinically, after a chronic; repeated hemoptysis or hemoptysis for several years is characterized by 7 to 20% of severe severe hemoptysis