临床习惯将胸水分为漏出液和渗出液两大类,并认为癌性胸水属于渗出液。实际上许多癌性胸水患者的胸水常规检查,结果常介于漏出液与渗出液之间。癌性胸水与良性胸水,特别是结核性胸水的鉴别诊断仍较困难。为了寻找一种简便易行的鉴别良、恶性胸 Clinical habits of chest water as leakage and exudate two categories, and that cancer pleural effusion is exudate. In fact, many patients with cancerous pleural effusion routinely check the pleural effusion and the result is often between the leakage fluid and exudate. The differential diagnosis of cancerous pleural effusion and benign pleural effusion, especially tuberculous pleural effusion, is still difficult. In order to find a simple and easy identification of benign and malignant chest