How would you approach low grade non-invasive urothelial carcinoma arising from seminal vesicle and ejaculatory ducts with invasion into prostate?

Primary urothelial carcinoma of seminal vesicle is extremely rare. There is some skepticism whether this is a true entity. More common is the secondary spread from bladder primary. This can happen as a result of direct invasion through bladder wall or via mucosal spread. Formal is staged as T4 disea...