I am a non smoker 54 years old white male. On my last trip to Urologist, blood was found in the urine even though there was no visible blood in it. The Urine was sent for analysis. UroVysion FISH test result showed 47 abnormal malignant cells with 111 normal cells. Cytology test was negative. I gave 3 more samples of urine. All came negative for blood or any abnormality. CT Scan was performed with negative for any tumors. Uroscopy done with no visible tumors. Now Cystoscopy is done. Right after cystoscopy doctor said, he did not see any abnormality. I am waiting for the biopsy results. My question is, is there any reason where UroVysion FISH test may give false positive result, due to other reasons such as infection, or some other abnormalities besides cancer?
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