Cisplatin/adverse effects Humans *Immunotherapy/adverse effects/methods *Muscles/pathology *Neoadjuvant Therapy/adverse effects Neoplasm Staging *Urinary Bladder Neoplasms/drug therapy/pathology/therapy chemoimmunotherapy immunotherapy meta-analysis muscle-invasive bladder cancer (MIBC) neoadjuvant commercial or financial relationships that could be construed as a potential conflict of interest.

Humans Female Male Infant *Urinary Bladder Neoplasms/diagnosis/therapy/pathology *Carcinoma Transitional Cell/pathology Urinary Bladder/pathology Neoplasm Staging Cystoscopy Cystectomy/methods

*Cystectomy Humans *Neoadjuvant Therapy Neoplasm Staging Treatment Outcome Urinary Bladder Neoplasms/*drug therapy/pathology/*surgery

Administration Intravesical *Carcinoma Transitional Cell/pathology Humans Male Neoplasm Invasiveness/pathology Neoplasm Recurrence Local/pathology Neoplasm Staging *Urinary Bladder Neoplasms/drug therapy/therapy

Carcinoma Transitional Cell/pathology Disease-Free Survival Humans *Neoplasm Staging Prognosis Urinary Bladder/*pathology Urinary Bladder Neoplasms/*pathology Bladder urothelial carcinoma Meta-analysis Squamous differentiation

Humans Neoplasm Staging Retrospective Studies Sensitivity and Specificity Ultrasonography *Urinary Bladder Neoplasms/diagnostic imaging

Antineoplastic Combined Chemotherapy Protocols/*therapeutic use Carcinoma Transitional Cell/*drug therapy/pathology Clinical Trials Phase II as Topic Clinical Trials Phase III as Topic Humans Neoplasm Metastasis Neoplasm Staging Practice Guidelines as Topic Randomized Controlled Trials as Topic Urinary Bladder Neoplasms/*drug therapy/pathology Immune checkpoint inhibitors Platinum-based chemotherapy Survival outcomes Treatment guidelines Urothelial carcinoma funded this work. MK PK and SD are employees of Evidera.

Antineoplastic Combined Chemotherapy Protocols/*therapeutic use Chemotherapy Adjuvant/methods Cisplatin/therapeutic use Clinical Decision-Making/methods *Cystectomy Disease-Free Survival Female Humans Male Neoadjuvant Therapy/methods Neoplasm Recurrence Local/*epidemiology/pathology/prevention & control Neoplasm Staging Patient Selection *Sex Factors Urinary Bladder/pathology/surgery Urinary Bladder Neoplasms/mortality/pathology/*therapy Adjuvant chemotherapy Bladder cancer Gender Meta-analysis Neoadjuvant chemotherapy

Carcinoma Transitional Cell/*diagnostic imaging/*pathology Humans *Multiparametric Magnetic Resonance Imaging Neoplasm Staging/methods Reproducibility of Results Sensitivity and Specificity Urinary Bladder Neoplasms/*diagnostic imaging/*pathology

Disease Progression Humans Muscle Smooth/pathology Neoplasm Grading Neoplasm Invasiveness Neoplasm Staging Treatment Failure Urinary Bladder/pathology Urinary Bladder Neoplasms/*pathology/*therapy *Watchful Waiting Active surveillance Non-Muscle Invasive bladder cancer Urothelial neoplasm

Carcinoma Transitional Cell/epidemiology/*pathology Disease Progression Humans Neoplasm Invasiveness Neoplasm Recurrence Local/epidemiology Neoplasm Staging Prognosis Urinary Bladder Neoplasms/epidemiology/*pathology Bladder cancer Progression Staging Substage T1 Urothelial carcinoma pT1

Adult Aged Aged 80 and over Cystectomy/methods/mortality Female Humans Hydronephrosis/*physiopathology/surgery Male Middle Aged Neoplasm Staging Prognosis Proportional Hazards Models Retrospective Studies Urinary Bladder/pathology Urinary Bladder Neoplasms/*complications/*pathology

Carcinoma Papillary/mortality/pathology/*therapy Disease Progression Humans Neoplasm Staging Progression-Free Survival Risk Assessment Risk Factors Time Factors Urinary Bladder Neoplasms/mortality/pathology/*therapy Urothelium/*pathology Bacillus Calmette-Guérin therapy Bladder cancer Bladder sparing Immediate cystectomy Micropapillary Prognosis Transurethral resection Urothelial carcinoma Variant histology

Carcinoma Transitional Cell/*diagnostic imaging/pathology/surgery Cystectomy Humans Lymph Nodes/*diagnostic imaging/pathology Lymphatic Metastasis/diagnostic imaging Magnetic Resonance Imaging Neoplasm Staging Positron Emission Tomography Computed Tomography Sensitivity and Specificity Tomography X-Ray Computed Urinary Bladder Neoplasms/*diagnostic imaging/pathology/surgery Bladder cancer Computed tomography Positron emission tomography Transitional cell carcinoma

B7-H1 Antigen/*metabolism Biomarkers Tumor/metabolism Carcinoma Transitional Cell/metabolism/*mortality/pathology Cell Membrane/metabolism Gene Expression Regulation Neoplastic Humans Neoplasm Staging Prognosis Survival Analysis *Up-Regulation Urinary Bladder Neoplasms/metabolism/*mortality/pathology Biomarker Meta-analysis Pd-l1 Urothelial carcinoma

*Cystectomy/adverse effects/methods Humans Neoplasm Staging Neoplasm Residual/pathology/surgery *Reoperation/methods/statistics & numerical data *Urinary Bladder Neoplasms/pathology/surgery Cystoscopy Meta-analysis Neoplasm recurrence Urinary bladder neoplasms

Adult Aged Aged 80 and over Female Humans *Magnetic Resonance Imaging Male Middle Aged *Neoplasm Staging/methods/standards Urinary Bladder Neoplasms/*diagnostic imaging bladder cancer diagnostic accuracy magnetic resonance imaging staging systematic review

Humans Neoplasm Grading Neoplasm Invasiveness Neoplasm Recurrence Local/*pathology Neoplasm Staging Neoplasm Residual *Reoperation Risk Factors Survival Rate Urinary Bladder/pathology Urinary Bladder Neoplasms/*pathology/*surgery Bladder Cancer Detrusor Muscle Progression Re-resection Recurrence Upstaging

Age Factors Biomarkers Tumor DNA Methylation/genetics Humans Neoplasm Staging Promoter Regions Genetic Proportional Hazards Models Sex Factors Survival Analysis Tumor Suppressor Proteins/*genetics Urinary Bladder Neoplasms/*genetics/*pathology

*Acetates *Carbon Carbon Radioisotopes Carcinoma Transitional Cell/*diagnostic imaging/pathology *Choline Humans Likelihood Functions Lymph Nodes/*diagnostic imaging/pathology Lymphatic Metastasis Neoplasm Staging Odds Ratio Positron Emission Tomography Computed Tomography ROC Curve Sensitivity and Specificity Urinary Bladder Neoplasms/*diagnostic imaging/pathology Bladder cancer C-11 acetate C-11 choline Lymph node Pet/ct Staging