1引言膀胱肿瘤是泌尿系统最常见的肿瘤,主要依靠有创性的膀胱镜检查并取活组织检查确诊。尿液脱落细胞检查是诊断膀胱肿瘤的常用无创性检查方法,但是阳性率较低,因此,需要研究新的更准确的膀胱肿瘤标记物。现将应用于检测膀胱肿瘤的标记物特点介绍如下。2细胞角蛋白-20细胞角蛋 1 Introduction Bladder cancer is the most common type of cancer in the urinary system and is mainly diagnosed by invasive cystoscopy and by invasive cystoscopy. Urine exfoliated cytology is a commonly used noninvasive method for the diagnosis of bladder cancer, but the positive rate is low. Therefore, new and more accurate bladder tumor markers need to be studied. Now applied to detect the characteristics of bladder tumor markers are described below. 2 cytokeratin-20 cytokeratin