Bladder wall calcification after intravesical chemotherapy with mitomycin C--a case report.

Bladder wall calcification has relatively few etiologies. We present such a case and review the literature to discuss it and the method for management. This case suffered from bladder wall calcification about 3 years after intravesical chemotherapy of mitomycin C. It was found accidentally during the transurethral resection of recurrent bladder tumor. The pathology confirmed the recurrence of transitional cell carcinoma combined with marked calcification. A repeat cystoscopy was done 3 months later. Massive calcified deposits in bladder wall especially in lesion of previous transurethral resection were still noted. Randomized biopsy showed dystrophic calcification without evidence of malignancy. We suggest that biopsy and/or resection (if possible) is a reasonable approach to eliminate the possibility of invasive bladder cancer.