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Transitional cell carcinoma — Clinical Guidelines

Overview

Transitional cell carcinoma (TCC) primarily affects the urinary tract, including the bladder, ureter, and renal pelvis, characterized by malignant transformation of transitional epithelial cells. 1 6 10

Diagnosis

Key Diagnostic Criteria: Presence of hematuria, irritative voiding symptoms, and abnormal imaging findings.

Recommended Tests: Cystoscopy, urine cytology, and imaging studies (CT, MRI, ultrasound).

Grading: Utilize TNM staging system for bladder TCC; endoscopic biopsy for definitive diagnosis. 1 6 7

Management

First-Line Treatments:

- Induction BCG Immunotherapy: For high-risk non-muscle invasive bladder TCC. - Endoscopic Approaches: Ureteroscopy and percutaneous techniques for upper tract TCC. 1 6

Adjunctive Treatments:

- Maintenance BCG: Post-induction therapy for recurrent or high-risk cases. 1 - Meloxicam: Considered in veterinary settings for symptom management; COX-2 expression may influence efficacy. 3 - Palliative Care: Focus on symptom management and quality of life in terminal stages. 4

Special Populations

Elderly Patients: Considerations for surgical interventions like nephroureterectomy, including minimally invasive techniques. 5

Comorbidities: Dialysis patients may require specialized techniques such as en bloc stapling during nephroureterectomy. 5

Key Recommendations

Use induction BCG immunotherapy followed by maintenance therapy for high-risk non-muscle invasive bladder TCC to reduce recurrence rates. (Evidence: Strong 1)

Endoscopic management is effective for upper-tract TCC, offering long-term outcomes comparable to surgical options. (Evidence: Moderate 6)

Incorporate palliative care principles in managing terminal TCC cases to enhance quality of life. (Evidence: Expert opinion 4)

References

1 Tempo J, Bolton D, O'Callaghan M. Seminal papers in urology: maintenance Bacillus Calmette-Guerin (BCG) immunotherapy for recurrent Ta, T1 and carcinoma in situ transitional cell carcinoma of the bladder: a randomized southwest oncology group study (SWOG-8507). BMC urology 2023. link 2 Stroman LA, Sharma N, Sullivan M. Upper ureteric transitional cell carcinoma, extending to the renal pelvis, presenting as duodenal obstruction. BMJ case reports 2015. link 3 Bommer NX, Hayes AM, Scase TJ, Gunn-Moore DA. Clinical features, survival times and COX-1 and COX-2 expression in cats with transitional cell carcinoma of the urinary bladder treated with meloxicam. Journal of feline medicine and surgery 2012. link 4 Downing R. A case report: veterinary palliative care and hospice for a west highland terrier with transitional cell carcinoma. The Veterinary clinics of North America. Small animal practice 2011. link 5 Ou CH, Yang WH, Tzai TS. En bloc stapling of renal hilum during hand-assisted retroperitoneoscopic nephroureterectomy in dialysis patients. Urology 2008. link 6 Sowter SJ, Ilie CP, Efthimiou I, Tolley DA. Endourologic management of patients with upper-tract transitional-cell carcinoma: long-term follow-up in a single center. Journal of endourology 2007. link 7 Zardawi IM, Duncan J. Evaluation of a centrifuge method and thin-layer preparation in urine cytology. Acta cytologica 2003. link 8 Sawczuk IS, Bagiella E, Sawczuk AT, Yun EJ. Clinical application of NMP22 in the management of transitional cell carcinoma of the bladder. Cancer detection and prevention 2000. link 9 Manganelli A, Barbanti G, Fornaini M, Del Vecchio MT. Transitional cell carcinoma of the ureteral stump 13 years after nephrectomy for benign disease. Urologia internationalis 1996. link 10 Patel A, Soonawalla P, Shepherd SF, Dearnaley DP, Kellett MJ, Woodhouse CR. Long-term outcome after percutaneous treatment of transitional cell carcinoma of the renal pelvis. The Journal of urology 1996. link 11 Noronha RF. Case report: transitional cell carcinoma of the renal pelvis presenting with vascular obstruction. The Journal of urology 1979. link56271-0)

Transitional cell carcinoma