癌性胸腔积液现在已成为较常见的疾病。癌性胸腔积液的发病机制、临床表现、治疗方法和预后与其它的胸腔积液有明显不同,全面了解它有实际的临床意义。本文就我们处理本病的体会并结合文献做一概要介绍。发病情况:癌性胸腔积液在普通内科中的发现率约为2％,肺内科中为4.3％,在肺癌病人中为15～50％。在胸腔积液的病因 Cancerous pleural effusion has now become a more common disease. The pathogenesis of cancerous pleural effusion, clinical manifestations, treatment and prognosis and other pleural effusion were significantly different, a comprehensive understanding of its practical clinical significance. This article on our treatment of this disease and combined with the literature to make a summary. Morbidity: The finding of cancerous pleural effusion was about 2% in general medicine, 4.3% in pulmonary medicine, and 15% to 50% in lung cancer patients. The cause of pleural effusion