患者,女,24岁。乏力、低热、咳嗽、痰带血丝2个月;3h前无诱因咳嗽加剧,呈阵发性,间断少量咳吐鲜血,量约200ml。10min前突感闷气,呼吸困难来院就诊。无异物吸入史,既往无结核病史。检查:急性病容,口唇紫钳,呼吸困难。左肺呼吸音消失,右肺底湿音。胸片示左肺上野锁骨下区中外带 Patient, female, 24 years old. Fever, fever, cough, phlegm with bloodshot 2 months; 3h ago no incentive to increase cough, paroxysmal, intermittent cough spit blood, the amount of about 200ml. Suddenly feeling sullen 10min, difficulty breathing to the hospital. No history of foreign body aspiration, no history of past TB. Check: acute disease, lips and red clamp, breathing difficulties. Left lung breath disappeared, right lung wet  tone. Chest radiograph shows the left lung in the supraclavicular region outside the belt