Centrifugal cytology: a new technique for urine cytology.

A new technique, centrifugal cytology, appears to have a high recovery rate of malignant cells from voided urine specimens resulting in a high probability of early disease detection and should be considered a good supplement to cytoscopic evaluation of high-risk populations.

Prostatic recurrences in the management of superficial bladder tumors.

Mitomycin C has proved to be useful as prophylaxis against superficial bladder tumor recurrences. However, there is a significant incidence of prostatic urethral recurrences. Careful followup with urine cytology and cystoscopy, and bladder and prostatic urethral biopsies should be done at regular intervals.