寻找胸腔积液 (胸液 )的病因学诊断临床上一时存在困难 ,尽早分辨肿瘤性与炎性胸液 ,确定治疗方案就显得更为重要。我们对 1992年 1月至 1997年 1月住院的 197例胸腔积液病人 ,检测胸液和血清淀粉酶及其比值 ,研究其与原发病因关系。1　资料与方法1 1　一般情况　 197例胸积液 Looking for etiological diagnosis of pleural effusion (pleural fluid) There are temporary clinical difficulties, early identification of tumor and inflammatory pleural effusion, to determine the treatment program is even more important. 197 patients with pleural effusion who were hospitalized from January 1992 to January 1997 were tested for pleural fluid and serum amylase and its ratio to study its relationship with primary etiology. 1 Materials and Methods 1 1 197 cases of common cases of pleural effusion