Prospective Sample Collection for Cancer of Bladder

Inclusion Criteria: * who are aged between 18-90, * who are of male or female sex, * who give their informed consent to collect their clinical and pathological data, * who are planned to undergo TURBT for BC, * who are planned to undergo (salvage) radical cystectomy with or without an extended pelvic lymph node dissection, * who are planned to undergo tumor biopsy (from primary or metastatic tumor), * who are planned to undergo radical nephroureterectomy ± partial cystectomy or segmental ureterectomy, with or without a lymph node dissection, * who are planned to undergo endoscopic tumor biopsy or resection, * from whom metastases will be surgically removed. Exclusion Criteria: * patients who do not give their informed consent to collect their clinical and pathological data, * patients who withdraw their informed consent to use their clinical and pathological data, * patients who refuse the planned treatment, * women who are pregnant or have suspicion of pregnancy.