FISH检测是尿路上皮癌诊断的一种辅助手段,但尚需完善,还不能作为肿瘤确诊的依据,本文通过2例漏诊病例,探讨其诊断价值。1材料与方法1.1材料2013-01-2013-06期间经我院收治的尿路疾病患者中,有10例行FISH技术检测,但其中2例结果为阴性,与组织活检结果不符。患者以反复肉眼血尿并腰痛之主诉入院。逆行输尿管肾盂造影提示输尿管中段充盈缺损,考虑 FISH detection is an adjunct to the diagnosis of urothelial carcinoma, but it still needs to be improved and can not be used as the basis for the diagnosis of cancer. This article discusses the diagnostic value of 2 cases of missed diagnosis. 1 Materials and Methods 1.1 Materials 2013-01-2013-06 During the period of treatment of urinary tract diseases admitted to our hospital, 10 cases were detected by FISH technique, but 2 of them were negative and did not match the biopsy results. Patients with repeated gross hematuria and back pain in the main complaint admission. Retrograde ureteroscopy prompted the middle ureteral filling defect, consider