女患10岁。发热、咳嗽5天入院。1年来反复咳嗽,咯白色泡沫粘液痰,发热,曾在当地医院三次诊为肺炎、肺不张,用抗生素治疗。患儿既往无结核接触史。查体:体温38.2℃,脉搏100次/分,呼吸32次/分,无发绀。右背部叩诊呈浊音,听诊右侧呼吸音减弱,未闻干、湿罗音。实验室检查:血白细胞22.0×10~9/L,中性 Female suffering from 10 years old. Fever, cough 5 days admitted. Repeated cough over the past year, slightly white foam phlegm, fever, three times in the local hospital diagnosed with pneumonia, atelectasis, with antibiotics. Children with no history of tuberculosis contact. Physical examination: body temperature 38.2 ℃, pulse 100 beats / min, breathing 32 beats / min, no cyanosis. Right back percussion was voiced, right auscultatory breath sounds weakened, did not hear dry, wet rales. Laboratory tests: white blood cells 22.0 × 10 ~ 9 / L, neutral