男,4个月。体重不增加2个月余,咳嗽10余天入院。患儿出生后纯牛奶喂养,体重增长满意。生后1个月余开始体重不增,多汗,精神倦,纳差。近10多天来患儿无明显诱因出现阵发性咳嗽,咳嗽无力,痰多,间有低热,曾多次在当地医院就诊未见改善而转来我院。体查:营养不良Ⅱ度,发育落后,重病面容,双肺呼吸音粗,未闻及干湿罗音,心音偏 Male, 4 months. Weight does not increase more than 2 months, cough more than 10 days admitted to hospital. Children born after pure milk feeding, weight gain satisfaction. 1 month after birth, weight gain does not increase, sweating, mental fatigue, anorexia. Nearly 10 days to children with no obvious incentive to paroxysmal cough, cough, phlegm, between a fever, many times in the local hospital did not see improvement and transferred to our hospital. Physical examination: Malnutrition Ⅱ degree, development, backwardness, serious illness, lung breath sounds rough, unheard-of and wet and dry rales, heart sounds partial