患者 ,女、41岁、因发热、咳嗽、无力以间质性肺炎入院。于去年 7月开始出现午后低热、咳嗽、无力。症状逐渐加重 ,抗炎治疗症状略有缓解。食欲减退 ,体重一年间减轻近 1 5ｋｇ,无腹痛、腹泻、盗汗症状 ,既往史 :否认传染病及传染病接触史。有卖血史 1 0年。体检 :体温 38℃、 The patient, female, 41 years old, was hospitalized for interstitial pneumonia due to fever, cough and weakness. In early July last year, there appeared low fever, cough, weakness. Symptoms gradually increased, anti-inflammatory treatment symptoms slightly relieved. Loss of appetite, body weight reduced nearly 1 5kg a year, no abdominal pain, diarrhea, night sweats symptoms, past history: to deny the history of infectious diseases and contagious diseases. A history of selling blood 10 years. Physical examination: body temperature 38 ℃,