1病历资料患儿男,14岁,因“咳嗽、咯血20余天”于2005-11-28入院。20余天前患儿于感冒后出现咳嗽,为阵发性,较剧烈,咳时有痰,初时为黄色痰,不黏稠,量不多,以晨起为重,后痰中出现血丝,进而为小血块,偶有气促,无喘息。无发热、胸痛;无呕吐、呕血、腹痛、腹泻;无进行性消瘦,全身皮 1 medical records of children male, 14 years old, because of “cough, hemoptysis more than 20 days” in 2005-11-28 admission. More than 20 days before the onset of a cold in children with cough, paroxysmal, more intense cough sputum, the initial time of the yellow sputum, not sticky, the amount of early morning heavy, sputum bloody, and then Small blood clots, occasional shortness of breath, no breathing. No fever, chest pain; no vomiting, hematemesis, abdominal pain, diarrhea; no progressive weight loss, systemic skin