DNA-based molecular cytology for bladder cancer surveillance

Urology
J Stephen Jones

Abstract

Surveillance strategies for urothelial cancer (UC) recurrence have historically relied on the diagnostic combination of cystoscopy and conventional urinary cytology. In this review, results of studies evaluating the role of the fluorescence in situ hybridization (FISH) assay in bladder cancer surveillance are critically examined. The published research on FISH compared with conventional cytology and cystoscopy for bladder cancer was identified using a Medline search and was critically analyzed. Sensitivity and specificity data were tabulated and compared. FISH outperformed conventional cytology across all stages and grades in all published reports, and it detected malignancy before the development of lesions visible by cystoscopy. Although overall sensitivity was 48% for cytology and 74% for FISH, its greatest advantage was in the detection of high-grade UC, including carcinoma in situ (CIS). Cumulative data from comparative studies showed the sensitivity of cytology compared with FISH was 19% versus 58% for grade 1, 50% versus 77% for grade 2, and 71% versus 96% for grade 3. Similar findings occurred by stage, where cytology compared with FISH sensitivity was 35% versus 64% for Ta, 66% versus 83% for T1, and 76% versus 94% for...Continue Reading

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Citations

Apr 23, 2014·International Urology and Nephrology·Torsten GruschwitzKerstin Junker
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