1病例资料男,56岁。因反复咳嗽10余年,间断咯血1年入院。有吸烟史30余年。1年前无明显诱因咯血2次,后自然缓解,10 h前再次咯血200 ml,无胸痛、发热等伴随症状。查体:体温36.5℃,脉搏90/min,呼吸23/min,血压135/80 mmHg。意识清,全身浅表淋巴结未触及。胸部无压痛,左肺叩诊呈浊音,双肺可闻及散在干湿啰音,以左下肺 1 case information male, 56 years old. Due to repeated cough for more than 10 years, intermittent hemoptysis 1 year admission. Have a history of smoking more than 30 years. 1 year ago, no obvious incentive to hemoptysis 2 times, after the natural relief, 10 h before hemoptysis 200 ml, no chest pain, fever and other symptoms. Physical examination: body temperature 36.5 ℃, pulse 90 / min, breathing 23 / min, blood pressure 135/80 mmHg. Clear consciousness, systemic superficial lymph nodes not touched. Chest no tenderness, left lung percussion was voiced, lungs can be heard and scattered in wet and dry rales to the left lower lung