患儿　女 ,5岁。自幼易咳嗽、咳痰 ,偶有发热 ,经抗炎治疗好转。近 1周来咳嗽、咳痰加重 ,为较稀薄浅黄色痰 ,偶有胸痛 ,不伴发热。查体 :胸廓对称无畸形 ,双肺呼吸动度一致 ,语颤相同 ,叩诊呈清音。双肺呼吸音粗 ,未闻及干湿鸣。血常规 :白细胞 10 .0× 10 9/Ｌ ,中性 46 .2 % Children with children, 5 years old. Since childhood, cough, sputum, occasional fever, anti-inflammatory treatment improved. Nearly a week to cough, sputum aggravating, thinner, light yellow sputum, occasional chest pain, without fever. Physical examination: thoracic symmetry without deformity, lung breathing consistent, the same tremor, percussion showed a clear voice. Breath sounds coarse lungs, did not smell and wet and dry Ming. Blood: white blood cells 10 .0 × 10 9 / L, neutral 46.2%