A Comprehensive Approach to Clinical Staging of Bladder Cancer.

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 ( < 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 ( < 0.000005), mostly pT3-4 (45.13% had pT4 disease) and higher risk of nodal metastasis ( = 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.