Method: Carcinoembryonic Antigen(CEA) and Carbohydrate Antigen(CA153,CA199,CA125) in serum and hydrothorax of both benign and malignant cases were measured.

• 方法:采用放射免疫分析法,测定良恶性胸水患者的血清和胸水CA153、CA199、CA125、CEA进行比较。