患男,3岁,以咳嗽、气短月余之主诉就诊。1月前发热,体温达38.5℃,咳嗽、气短。经静脉滴注抗生素(具体药物不详)1月后体温正常。现以咳嗽、气短、食纳差,遂来我院就诊。查体:T36.4℃,P160次/min,R42次/min。形体消瘦,精神差,呼吸困难,三凹征明显;左侧呼吸动度减弱,左下肺叩诊浊音,左肺呼吸音减弱,左背部可闻及支气管肺泡呼吸音;右肺听诊为清音。食纳差,大小便正常。实 Suffering from men, 3 years old, to cough, shortness of breath more than the main complaint treatment. 1 month ago fever, body temperature reached 38.5 ℃, cough, shortness of breath. After intravenous antibiotics (specific drugs unknown) normal body temperature after 1 month. Is to cough, shortness of breath, poor appetite, then came to our hospital. Physical examination: T36.4 ℃, P160 times / min, R42 times / min. Body weight loss, poor spirits, difficulty breathing, three concave signs obvious; left respiratory motion decreased, the lower left lung percussion dullness, left lung breath sounds weakened, left back can be heard and bronchial alveolar breath sounds; Poor appetite, normal urine. real