患者,男,17岁。因气短、呼吸困难2个月,加重并咳嗽咳痰3d入院。2个月前无诱因出现气短、咳嗽、咳痰,因程度轻微,患者家属一直未在意。3d前,呼吸困难明显加重,并渐起出现咳嗽,咳黄色黏痰,量中等,无发热、咯血、胸痛,在当地卫生所以“肺部感染”予抗感染治疗2d(具体用药不详)后上 Patient, male, 17 years old. Due to shortness of breath, difficulty breathing 2 months, increased and cough and sputum 3d admitted. 2 months ago, there was no incentive to shortness of breath, cough, expectoration, due to a slight degree, the families of patients has not been concerned. Dyspnea was obviously aggravating and coughed up gradually before coughing and coughing yellow and phlegm with a moderate amount of fever, hemoptysis and chest pain. In the local health department, “pulmonary infection” was given to patients after 2 days of treatment (specific medication is unknown)