Papillary urothelium carcinoma.

My father is 57 yrs old.18days ago he underwent a cystoscopy and Turbt where the doctors found a 2cm superficial pedunculated papillary tumour 1cm away from left UO and another small 0.5cm papillary lesion right side proximal to right.They gave mitomycin 40.since then he is having the trouble of frequent urination.the biopsy report shows that it's a G2 low grade papillary urothelium carcinoma.definite subepithelial connective tissue(lamina propria) invasion isn't seen.deep muscle is not identified.Perineural invasion is not identified.Definite lymphovascularis not identified. Comments-severe cautery artifact limits definite comment on invasion. I am attaching the reports.please suggest me the best treatment and what about his prognosis?