卞××,男,32岁,因发热咳嗽伴黄脓痰偶带血丝五个月而入院。发病初曾在某医院诊断为肺结核,经链霉素等抗痨治疗二个月无效。后在某医院胸透并摄胸片见左下肺有一团块阴影诊断为肺脓疡。经各种抗菌素治疗二个月咳嗽好转。但仍间歇发热,肺部块影反增大而转来我院。既往无呼吸系统病史。一般情况较差,贫血面容,神清合作,血压、呼吸、脉搏均正常,体温波动在38℃～39℃,无杵状指,胸廓对称,左下肺呼吸音减低无罗音。锁骨上淋巴结阴性。血生化检 Bian × ×, male, 32 years old, due to fever cough with yellow purulent sputum even with bloodshot five months and admitted to hospital. Early onset of a hospital diagnosed as tuberculosis, streptomycin and other anti-tuberculosis treatment of two months invalid. Thoracic and chest radiograph in a hospital, see the shadow of the lower left lung has a mass of lung abscess. After a variety of antibiotics cough improved for two months. But still intermittent fever, pulmonary block shadow increased and transferred to our hospital. No previous respiratory history. In general, poor anemia, facial features, clear cooperation, blood pressure, respiration, pulse are normal, temperature fluctuations in 38 ℃ ~ 39 ℃, without clubbing, thoracic symmetry, lower left lung breath sounds to reduce non-rales. Subclavian lymph nodes negative. Blood biochemical test