腹水的鉴别诊断仍存在不少问题,常规方法诊断的敏感性和特异性均很低。已发现,在风湿病滑膜液、结核性胸水、结缔组织病和癌性腹水中.纤维联接蛋白(Fn)含量升高,本文评价了Fn在鉴别良、恶性腹水中的价值。53例患者(男41,女12)均因腹水原因待查入院,年龄38～83岁(平均61岁)。1例血性腹水除外,故尚有52例。分为三组:①无并发症的无菌性腹 There are still many problems in the differential diagnosis of ascites. The sensitivity and specificity of conventional methods for diagnosis are very low. It has been found that the level of fibronectin (Fn) in rheumatic synovial fluid, tuberculous pleural effusion, connective tissue disease, and cancerous ascites is increased. This article evaluated the value of Fn in differentiating benign and malignant ascites. 53 patients (male 41, female 12) were hospitalized for ascites, aged 38 to 83 years (mean 61 years). Except for 1 case of bloody ascites, there were 52 cases. Divided into three groups: 1 Aseptic abdominal without complications