A Comprehensive Approach to Clinical Staging of Bladder Cancer

Abstract

Background: A significant number of patients with advanced urothelial cell carcinoma are under- or over-staged. Implementation of clinical variables could be useful for improving the accuracy of clinical staging. Aim: To explore the differences between clinical and pathological diagnosis in patients with UCC, and to identify clinical variables that might play a role in under- or overstating. Materials: A total of 553 patients after radical cystectomy were included in the analysis. Clinical stage of the disease was diagnosed according to CT or MRI in relation to clinical data. Results: Higher clinical stage correlated with a higher pathological stage (p < 0.00005), but in 306 patients did not correspond (142 patients were under-staged and 164 over-staged). Over half (54.2%) of the patients staged as cT1–cT2 were misdiagnosed: 137 patients were under-staged and 133 over-staged. Hydronephrosis was associated with a higher pathological stage (p < 0.000005), mostly pT3–4 (45.13% had pT4 disease) and higher risk of nodal metastasis (p = 0.0028). The highest percentage of PSM was found in patients with pT4 (33.12%). Conclusions: Clinical staging of bladder cancer is poorly executed, with one third of patients under-staged and one third over-staged. To improve accuracy, we recommend a multimodal approach, combining histopathological evaluation with results of imaging studies.