Papillary-like bladder calcifications following intravescical mitomycin C. A case report

Area of Science:

• Uro-oncology
• Medical imaging
• Pharmacology

Background:

• Superficial transitional cell carcinoma (TCC) of the bladder is a common malignancy.
• Intravescical chemotherapy, including mitomycin C, is a standard treatment for non-muscle invasive bladder cancer.
• Transurethral resection (TUR) is a primary intervention for bladder tumors.

Observation:

• A patient with recurrent superficial multifocal TCC developed bladder calcifications.
• The calcifications were noted exclusively in regions previously subjected to TUR.
• The endoscopic appearance highlighted the localized nature of the calcifications post-mitomycin C instillation.

Findings:

• Intravescical mitomycin C can lead to bladder calcifications in TCC patients.
• The occurrence of calcifications is associated with prior TUR sites.
• This suggests a potential interaction between mitomycin C, bladder tissue, and surgical intervention.

Implications:

• Understanding this adverse effect is crucial for patient management and treatment planning.
• Further research may elucidate the mechanisms behind mitomycin C-induced calcifications at TUR sites.
• This finding could inform future strategies for intravescical therapy delivery and monitoring.