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Original Article

Urothelial Atypia and Survival Rate of 500 Unselected Patients with Primary Transitional-Cell Tumour of the Urinary Bladder

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Pages 257-263 | Received 15 Jul 1987, Published online: 15 Feb 2010
 

Abstract

In a consecutive series of 500 unselected patients with primary urinary bladder tumours the influence of urothelial atypia on the 5 years survival-rate was examined. All tumours were transitional-cell tumours categorized according to the T-classification. Mucosal biopsies from 7 preselected sites were taken at the initial cystoscopy in 391 patients (78%) to identify urothelial atypia. The over-all cumulative 5 years survival-rate was 48%. Submucosal and muscle invasion had major influence on survival, whereas tumour grade was less important. Patients with urothelial atypia fared significantly worse than those with normal bladder mucosa (5 years survival 42% versus 62%). This difference in survival-rate became apparent first after two years of observation. Grade II atypia in the bladder mucosa and grade III (carcinoma in situ) had equal significance assessed by the survival-rates.

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