How is staging for urothelial cancer?

Ta, CIS (T0): Ø Ta: Superficial, tumor is limited to the mucosal/ submucosal (but doesn’t reach the lamina propria) layer, can be low or high grade (statistically, more likely it’s low grade) Ø CIS: T0: in situ (only in urothelium), we don’t resect it, high grade, very aggressive, poor prognosis, it can metastasize at any instant (if it metastasizes, we simply can offer symptomatic treatment) Ø T1 : Invades lamina propria Ø T2: Muscles are invaded. Ø T3: Peri vesical fat Ø T4: Edges of organs Ta, T1 are superficial. T2, T3, T4 are deep