<prompt> Treatment of stage I bladder cancer is -Radical cystectomyEndoscopic removal with intravesical chemotherapyChemotherapyRadiotherapy  <response>: Ans. is b i.e., Endoscopic removal with intravesical chemotherapy Following is the slide of TNM staging of bladder carcinoma:Bladder staging. TNM, tumor, node, metastasis Stage I bladder carcinomas are typically come under superficial bladder tumors.Following table is a broad guideline for the management of urinary bladder carcinoma:Management of Bladder CancerNature of LesionManagement ApproachSuperficialEndoscopic removal usually with intravesical therapyInvasive diseaseCystectomy systemic chemotherapy before or after surgeryMetastatic diseaseCurative or palliative chemotherapy based on prognostic factors - surgery 