1临床资料患儿女,2岁,因“反复咳嗽,咯血伴面苍2月”于2011年4月8日入住华中科技大学同济医学院附属荆州医院儿科。患儿于入院前2月无明显诱因出现咳嗽,伴咯血痰,无呼吸困难及喘息,无发热,无抽搐,无吐泻,无腹痛,无皮疹,无尿少及血尿,入住当地医院治疗,发现患儿明显贫血(血红蛋白 1 clinical data Children, 2 years old, because of “repeated cough, hemoptysis with Cang 2” on April 8, 2011 to stay in Huazhong University of Science and Technology Tongzhou Medical College, Jingzhou Hospital Pediatrics. There was no obvious predisposition for cough, hemoptysis with sputum, no breathing difficulties and wheezing, no fever, no convulsions, no vomiting, no abdominal pain, no rash, no urinary and hematuria, and found that there was no obvious predisposition to the local hospital Children with significant anemia (hemoglobin