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Urine cytology after flexible cystoscopy
1Department of Urology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. herrh@mskcc.org
BJU International
|September 13, 2005
Summary
Urine cytology after flexible cystoscopy accurately reflects pre-procedure results for bladder tumor surveillance. This finding supports post-procedure urine cytology as a reliable indicator of bladder tumor recurrence.
Area of Science:
- Urology
- Oncology
- Diagnostic Cytopathology
Background:
- Flexible cystoscopy is a key procedure for bladder tumor surveillance.
- Urine cytology is a non-invasive diagnostic tool for detecting bladder cancer.
- Understanding the impact of cystoscopy on urine cytology is crucial for accurate diagnosis.
Purpose of the Study:
- To evaluate the correlation between urine cytology findings obtained before and immediately after flexible cystoscopy.
- To determine the diagnostic utility of post-cystoscopy urine cytology in bladder tumor surveillance.
Main Methods:
- 153 patients undergoing surveillance for bladder tumors provided urine samples.
- Urine cytology was performed before and immediately after flexible cystoscopy.
- Cystoscopy findings were correlated with cytology results.
Main Results:
- A strong correlation was observed between pre- and post-cystoscopy urine cytology results.
- 116 patients had negative cytology both before and after cystoscopy, with normal cystoscopic findings.
- 37 patients had positive cytology both before and after cystoscopy, indicating recurrent tumors.
Conclusions:
- Urine cytology performed immediately after flexible cystoscopy shows high concordance with pre-procedure results.
- Post-flexible cystoscopy urine cytology is a reliable method for assessing bladder tumor status.
- This supports the use of post-procedure urine cytology in routine bladder cancer surveillance.