Abstract

Objective To investigate the clinical value of fluorescence in situ hybridization (FISH) in the diagnosis of urothelial carcinoma.Methods From September 2010 to October 2011,morning voiding urine of 27 patients with suspected urothelial carcinoma was collected for FISH examination.The results of FISH examination were compared with the results of pathological examination by endoscopic biopsy.Both sensitivity and specificity were compared respectively,and the cost of each kind of examination was also considered.Results Of 27 cases,pathological examination by endoscopic biopsy revealed 11 cases of urothelial carcinoma,FISH examination showed 9 cases of urothelial carcinoma,but only 7 cases in these 11 cases.The overall sensitivity of FISH examination was 63.6％ (7/11 ),the specificity was 87.5％(14/16).The cost per case of FISH examination (3100 yuan) was 3.1 times of pathological examination by endoscopic biopsy( 1000 yuan).Conclusions It showed that there is no advantage of FISH examination for diagnosis of urothelial carcinoma considering both the sensitivity and specificity,and the cost is also higher than that of pathological examination by endoscopic biopsy.It should be evaluated further when FISH examination is widely used in clinic. Key words: In situ hybridization,fluorescence; Urologic neoplasms; Endoscopes; Biopsy

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