PMID- 11025767 OWN - NLM STAT- MEDLINE DCOM- 20001121 LR - 20191210 IS - 0022-5347 (Print) IS - 0022-5347 (Linking) VI - 164 IP - 5 DP - 2000 Nov TI - A comparison of cytology and fluorescence in situ hybridization for the detection of urothelial carcinoma. PG - 1768-75 AB - PURPOSE: We determine the relative sensitivities of cytology and fluorescence in situ hybridization (FISH) for the detection of urothelial carcinoma. MATERIALS AND METHODS: A mixture of fluorescent labeled probes to the centromeres of chromosomes 3, 7 and 17, and band 9p21 (P16/CDKN2A gene) was used to assess urinary cells for chromosomal abnormalities indicative of malignancy. A total of 280 urine specimens from 265 patients, including 150 with a history of urothelial carcinoma and 115 without a history of urothelial carcinoma, were analyzed. FISH analysis was performed without prior knowledge of clinical findings, that is biopsy, cystoscopy and cytology results. A positive result was defined as 5 or more urinary cells with gains of 2 or more chromosomes. RESULTS: A total of 75 biopsies showed urothelial carcinoma at FISH analysis among the 265 patients. The sensitivity of urine cytology for pTa (36 cases), pTis (18) and pT1-pT4 (15) tumors was 47%, 78% and 60%, respectively, for an overall sensitivity of 58%. The sensitivity of FISH for pTa (37 cases), pTis (17) and pT1-pT4 (19) tumors was 65%, 100% and 95%, respectively, for an overall sensitivity of 81%. FISH was significantly more sensitive than cytology for pTis (p = 0.046), pT1-pT4 (p = 0.025), grade 3 (p = 0.003) and all tumors (p = 0.001). The specificity of cytology and FISH among patients without cystoscopic evidence of urothelial carcinoma and no history of urothelial carcinoma was 98% and 96%, respectively (p = 0.564). CONCLUSIONS: The sensitivity of FISH for the detection of urothelial carcinoma is superior to that of cytology, and the specificity of FISH and cytology for urothelial carcinoma are not significantly different. Further prospective studies are required but FISH has the potential to improve significantly the management of urothelial carcinoma. FAU - Halling, K C AU - Halling KC AD - Departments of Laboratory Medicine and Pathology, Urology, and Biostatistics, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA. FAU - King, W AU - King W FAU - Sokolova, I A AU - Sokolova IA FAU - Meyer, R G AU - Meyer RG FAU - Burkhardt, H M AU - Burkhardt HM FAU - Halling, A C AU - Halling AC FAU - Cheville, J C AU - Cheville JC FAU - Sebo, T J AU - Sebo TJ FAU - Ramakumar, S AU - Ramakumar S FAU - Stewart, C S AU - Stewart CS FAU - Pankratz, S AU - Pankratz S FAU - O'Kane, D J AU - O'Kane DJ FAU - Seelig, S A AU - Seelig SA FAU - Lieber, M M AU - Lieber MM FAU - Jenkins, R B AU - Jenkins RB LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Urol JT - The Journal of urology JID - 0376374 SB - IM MH - Centromere MH - Disease Progression MH - Female MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Male MH - Sensitivity and Specificity MH - Urinary Bladder Neoplasms/diagnosis MH - Urine/cytology MH - Urologic Neoplasms/*diagnosis EDAT- 2000/10/12 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/10/12 11:00 PHST- 2000/10/12 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/10/12 11:00 [entrez] AID - S0022-5347(05)67104-2 [pii] PST - ppublish SO - J Urol. 2000 Nov;164(5):1768-75.