title: Evaluation of the T stage of carcinoma of the bladder by transurethral ultrasonography.
abstract: In order to evaluate the accuracy of transurethral ultrasonography in predicting the T stage of bladder tumors a prospective study was initiated. Transurethral ultrasonography was performed in 308 consecutive patients prior to cystoscopy, transurethral resection, biopsy or cystectomy. The findings of ultrasonography were compared with the histopathologic results. In 218 out of the 308 patients a carcinoma of the bladder was diagnosed histologically, whereas in 90 patients a tumor could not be detected on histological examination. In 78.2% of those patients, in whom a carcinoma of the bladder was present, it was possible to predict the correct T stage. It was not possible, however, to distinguish tumors of stage TA from those of stage T1. Further analysis of the results revealed an overstaging of the tumor in 12.0%, whereas in 8.0% of the cases the tumor was understaged or had not been recognized at all by ultrasonography.
authors.affiliation: Department of Urology, University of Würzburg Medical School, FRG.
authors.forename: J W
authors.initials: JW
authors.lastname: Grups
authors.forename: A
authors.initials: A
authors.lastname: Gruss
authors.forename: H G
authors.initials: HG
authors.lastname: Frohmüller
mesh_terms: D006801:Humans; D009367:Neoplasm Staging; D011446:Prospective Studies; D014463:Ultrasonography; D001743:Urinary Bladder / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000473:pathology*