Intermediate-risk group in patients with transitional cell carcinoma of the bladder: prediction of high-risk patients in this heterogeneous group
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Updated: Jun 19, 2026

Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development
Published on: October 30, 2013
F Yencilek1, B Onal, A Erozenci
1Department of Urology, Yeditepe University Medical Faculty, Istanbul, Turkey. fyencilek@yeditepe.edu.tr
Objective:
To determine whether recurrence at first follow-up cystoscopy predicts future recurrence in patients with an intermediate risk of superficial bladder cancer.
Methods:
In total, 304 patients were classified as low (n = 60), intermediate (n = 177) or high risk (n = 67) based on the primary pathological/clinical findings, as previously described in literature. The intermediate-risk group was further divided into 2 subgroups based on recurrence at the first follow-up cystoscopy: A (recurrence negative) and B (recurrence positive).
Results:
The mean recurrence rates of low-, intermediate- and high-risk patients were 1.76, 6.41 and 9.49, respectively (p < 0.05). Similarly, the difference in the recurrence rates between subgroups A (4.37) and B (9.12) was found to be statistically significant (p = 0.00). Additionally, while the difference between the low-risk group and subgroup A was statistically significant (p = 0.008), there was no significance between subgroup B and the high-risk group (p = 0.892). In the multivariate analysis, the most significant prognostic parameter for recurrence was the outcome of the first follow-up cystoscopy, followed by tumor multiplicity and grade.
Conclusions:
Patients showing recurrence at first follow-up cystoscopy in the intermediate-risk group should be classified as high-risk patients and treated accordingly.
