What are types of urothelial cancer?

Can be: -Urothelial carcinoma (Most common) -Squamous carcinoma (More aggressive, secondary to Chronic inflammation of the bladder (frequent in Egypt due to bilharzia) (However, the most common is urothelial cancer) -Small cell carcinoma (More aggressive) Polyps have 2 forms: Pedunculated (=having one root) or Sessile (=having a large base); Sessile is usually more aggressive than pedunculated)