Transitional Cell Carcinoma of the Urethra in Men after Radical Cystectomy for Bladder Cancer. Is Prophylactic Urethrectomy Indicated?

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Abstract
A retrospective study of the incidence and clinical course of transitional cell carcinoma of the urethra is reported. Of 110 consecutive male patients who underwent cystectomy during a 9-year period, 9 had or developed a urethral tumour. Five patients undergoing radical cystectomy had known or suspected urethral involvement which was confirmed at urethrectomy. All 5 had deeply invasive (T3 or T4) transitional cell carcinomas of the bladder and subsequently died of metastatic disease. Four patients underwent urethrectomy bacause of signs or symptoms of urethral recurrence at an average interval of 2.5 years after cystectomy. There were two deaths in this group, neither of which appeared to be due to urethral recurrence. Six additional patients had undergone prophylactic urethrectomy because of prostatic urethral involvement or diffuse carcinoma in situ in the cystectomy specimen, and none had identifiable tumour in the anterior urethra. The residual urethra is a potential focus for recurrent tumour and this necessitates careful follow-up with serial cytology, but the low incidence of urethral recurrence (3.5% in this series) does not appear to warrant routine urethrectomy at the time of cystectomy.