PMID- 17321328 OWN - NLM STAT- MEDLINE DCOM- 20070402 LR - 20070226 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 173 IP - 2 DP - 2007 Mar TI - Utility of a multiprobe fluorescence in situ hybridization assay in the detection of superficial urothelial bladder cancer. PG - 131-5 AB - We evaluated the performance of a multiprobe FISH (fluorescence in situ hybridization) assay for noninvasive detection of superficial urothelial carcinoma (UC) in the bladder, in comparison to urinary cytology. Voided urine samples from 74 patients with superficial UC were analyzed by both techniques. Urine samples from 19 patients with muscle-invasive tumors and from 19 healthy control subjects were also studied. For FISH analysis, labeled probes for chromosomes 3, 7, 9, and 17 were used to assess chromosomal abnormalities indicative of malignancy. We found a significant difference between the overall sensitivity of FISH and cytology in superficial UC detection (70.3 versus 35.1%, respectively; P < 0.0001). This significant difference was maintained when superficial UCs were broken down into low grade (52.8 versus 13.9%, respectively; P < 0.0005) and high grade (86.8 versus 55.3%, respectively; P < 0.0015) tumors. Overall specificity was 100% for cytology and 94.7% for FISH (difference not significant). Of patients with suspicious cytology, 69% were positive by FISH. Together, these findings suggest that FISH assay for chromosomes 3, 7, 9, and 17 has a higher sensitivity than cytology and a similar specificity in the detection of superficial UC--which could be useful for reducing some cystoscopies in the accurate follow-up usually performed in these patients. FAU - Marin-Aguilera, Mercedes AU - Marin-Aguilera M AD - Department of Urology, Hospital Clinic, Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Villarroel 170, 08036 Barcelona, Spain. FAU - Mengual, Lourdes AU - Mengual L FAU - Ribal, Maria Jose AU - Ribal MJ FAU - Burset, Moises AU - Burset M FAU - Arce, Yolanda AU - Arce Y FAU - Ars, Elisabet AU - Ars E FAU - Oliver, Artur AU - Oliver A FAU - Villavicencio, Humberto AU - Villavicencio H FAU - Algaba, Ferran AU - Algaba F FAU - Alcaraz, Antonio AU - Alcaraz A LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 SB - IM MH - Aged MH - Cytodiagnosis/methods MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Male MH - Sensitivity and Specificity MH - Urinary Bladder Neoplasms/*diagnosis/genetics/urine EDAT- 2007/02/27 09:00 MHDA- 2007/04/03 09:00 CRDT- 2007/02/27 09:00 PHST- 2006/07/31 00:00 [received] PHST- 2006/10/02 00:00 [revised] PHST- 2006/10/13 00:00 [accepted] PHST- 2007/02/27 09:00 [pubmed] PHST- 2007/04/03 09:00 [medline] PHST- 2007/02/27 09:00 [entrez] AID - S0165-4608(06)00710-2 [pii] AID - 10.1016/j.cancergencyto.2006.10.011 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2007 Mar;173(2):131-5. doi: 10.1016/j.cancergencyto.2006.10.011.