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β_2-MG(β_2微球蛋白)是人体有核细胞表面的白细胞相容抗原的亚单位,目前已被广泛用作泌尿系统疾病、肝病、造血系统疾病、恶性肿瘤的诊断及监测指标,但尚少有在肺部疾病中应用价值的评价。临床工作中,常常遇到良性恶性胸水的鉴别问题,有时难以鉴别,给临床治疗带来困难。为此我们比较了结核性胸膜炎和恶性胸水时血及胸水中β_2-MG的变化,以观察该指标在结核性胸膜炎和恶性胸水鉴别诊断中的应用价值。
β_2-MG (β_2-microglobulin) is a subunit of leukocyte-compatible antigen on the surface of human nucleated cells. So far it has been widely used as a diagnostic and monitoring indicator of urinary system diseases, liver diseases, hematopoietic system diseases and malignant tumors. Evaluation of rare in the application of the value of lung disease. Clinical work, often encountered in the identification of benign and malignant pleural effusion, sometimes difficult to identify, to clinical treatment difficulties. To this end, we compared the changes of β_2-MG in blood and pleural effusion of tuberculous pleurisy and malignant pleural effusions to observe the value of this index in the differential diagnosis of tuberculous pleurisy and malignant pleural effusion.