患者男，51岁。1996年8月因患急性心肌梗塞于当地市医院内科住院治疗。住院期间胸片、CT片均示右下肺巨大肿块影，因缺乏临床症状，未做进一步检查及治疗。1997年9月8日下午突然剧烈咳嗽，即吐出鲜血约10ml及大量铁锈色痰，同时伴胸痛及发热，于是患者第二次住人该院诊治。胸片 Male patient, 51 years old. In August 1996, he was hospitalized in a local city hospital due to acute myocardial infarction. During the hospitalization period, chest radiographs and CT scans showed large masses of the right lower lung. Due to lack of clinical symptoms, no further examination and treatment was performed. In the afternoon of September 8, 1997, she had a sudden and severe cough, which was about 10 ml of blood spit and a lot of rust stains. At the same time, it was accompanied by chest pain and fever, so the patient was admitted to the hospital for the second time. Chest