What is the role of urine cytology in the diagnosis of carcinoma in situ (CIS) bladder cancer?

Updated: Feb 23, 2021
  • Author: Kara N Babaian, MD, FACS; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Answer

Urine cytology is often the test used for diagnosis of CIS. Suggestive urine cytology findings encourage the urologist to perform a bladder biopsy. With a properly collected urine sample that is promptly placed into fixative, CIS is detected in 70-75% of patients.


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