Background: Biopsy of the red patches in the bladder, when found at cystoscopy, is routinely performed in urological practice. This is done to establish the sinister diagnosis of carcinoma-in-situ among other causes.
Objective: To analyse the pathology of the red patches and to determine if routine biopsy of these patches is warranted.
Patients and methods: This was a retrospective study conducted over a period of 36 months, in which 50 patients were identified, who underwent biopsies of their red patches. All patients with a history of bladder carcinoma and obvious bladder tumours were excluded from this study.
Results: The mean age of the patients was 60.8 years. 25 patients had cystoscopy for lower urinary tract symptoms, 21 for haematuria and 4 for recurrent urinary tract infection. Carcinoma in situ was found in 4 (8%) patients, of whom only 2 had positive urine cytology.
Conclusion: It is prudent to perform a biopsy of all incidentally diagnosed red patches because of a major yield rate of carcinoma in situ. This procedure also picks up other important pathologies, which help in further management.
- CIS, carcinoma in situ
- LUTS, lower urinary tract symptoms
- red patches
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Competing interests: None.