two methods of laser irradiation , ( 1 ) focal pdt using a 400 micron quartz fiber through a cystourethroscope in 22 patients with superficial bladder tumors and ( 2 ) whole bladder wall total pdt using a motor-driven laser light scattering device in 24 patients with multifocal carcinoma in situ and/or dysplasia of bladder mucosa associated with multicentric concurrent superficial tumors , were used .
C0005695
bladder tumors
C0005682
bladder