1病例资料患者男性,79岁,半年前无明显诱因出现上腹部疼痛,性质描述不清,伴恶心,呕吐2次胃内容,量不多。到当地医院就医,按“胃病”给予对症处理无效,2d后逐渐感心悸、胸闷、伴有咳嗽、咳痰,为中量粘痰,不能平卧。胸部CT扫描示:双下肺可见小片状影,密度不均,边缘不清,双肺透亮度增高,左下肺背段 1 Case data Male, 79 years old, no obvious incentive to appear six months ago, upper abdominal pain, the nature of the description is unclear, with nausea, vomiting 2 stomach content, small amount. To the local hospital for treatment, press “stomach ” to give symptomatic treatment is invalid, 2d gradually feel palpitations, chest tightness, accompanied by cough, sputum, in the amount of phlegm, can not lie down. Chest CT scan shows: double lower lung visible small pieces of shadow, uneven density, unclear edge, increased lung brightness, lower left lung back