Bacillus Calmette-Guerin intravesical instillation therapy-induced urothelial necrosis of the bladder and upper urinary tract

Bacillus Calmette-Guerin (BCG) intravesical instillation therapy is the most effective adjuvant therapy for bladder cancer after transurethral resection of bladder tumor (TURBT). We present the first case to our knowledge with bladder and ureteral necrosis as a severe local side effect of it.