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Carcinoma of urinary bladder — Clinical Guidelines

Overview

Carcinoma of the urinary bladder is a common malignancy characterized by malignant transformation of urothelial cells lining the bladder wall, often presenting as superficial (nonmuscle-invasive) or invasive disease. 1 3

Diagnosis

Cystoscopy with biopsy for definitive diagnosis 1 3

Transurethral resection of bladder tumor (TURBT) for staging and removal of visible tumors 1

Cystoscopy for follow-up monitoring 1

Imaging (CT, MRI) for staging and assessing extent of disease 1

Urine cytology to detect malignant cells 1

Grading based on WHO classification: pTa, pT1, pT2-4 1

Management

Low/Intermediate Risk NMIBC: Single immediate intravesical instillation (e.g., BCG, chemotherapy) 1

Intermediate Risk NMIBC: Intravesical bacillus Calmette-Guerin (BCG) or chemotherapy 1

High Risk NMIBC: Second transurethral resection (TURBT) 1, adjuvant intravesical BCG 1

Highest Risk/Invasive Disease: Radical cystectomy 1

Adverse Events: Monitor for systemic side effects post-BCG, such as granulomatous hepatitis requiring steroid therapy 2

Special Populations

Comorbidities: Consider impact on treatment tolerance and outcomes; no specific guidelines provided in abstracts 1

Elderly: Management tailored to comorbidities and functional status; no specific dosing adjustments mentioned 1

Key Recommendations

Perform cystoscopy with biopsy for diagnosis and follow-up monitoring of NMIBC (Evidence: Moderate) 1

Administer adjuvant intravesical BCG in high-risk NMIBC patients to improve outcomes (Evidence: Moderate) 1

Consider radical cystectomy for patients with highest-risk bladder cancer to achieve curative intent (Evidence: Moderate) 1

Enhance guideline education to improve compliance with NMIBC management protocols (Evidence: Expert opinion) 1

References

1 Mori K, Miura N, Babjuk M, Karakiewicz PI, Mostafaei H, Laukhtina E et al.. Low compliance to guidelines in nonmuscle-invasive bladder carcinoma: A systematic review. Urologic oncology 2020. link 2 Desmet M, Moubax K, Haerens M. Multiple organ failure and granulomatous hepatitis following intravesical bacillus Calmette-Guérin instillation. Acta clinica Belgica 2012. link 3 Fukushima S, Ito N, el-Bolkainy MN, Tawfik HN, Tatemoto Y, Mori M. Immunohistochemical observations of keratins, involucrin, and epithelial membrane antigen in urinary bladder carcinomas from patients infected with Schistosoma haematobium. Virchows Archiv. A, Pathological anatomy and histopathology 1987. link

Carcinoma of urinary bladder