It is difficult to characterize this bladder lesion - it is a proliferative lesion with exophytic and endophytic growth pattern with minimal cytologic atypia. The main differential diagnoses is between a papillary urothelial neoplasm with low malignant potential (PUNLMP) or papillary cystitis. Overall, I would favor PUNLMP.  I do not think this is a frozen section slides. Frozen section of bladder lesion should be strongly discouraged.