<prompt> 90 of bladder cancer arise from ?Squamous cellsGlandular cellsTransitional cellsSmooth muscle cells  <response>: Ans. is c i.e., Transitional cells There are three common histological types of bladder cancer :? Transitional cell carcinama TCC 90 Squamous cell carcinona SCC - 5 -10 Adenocarcinoma -- 2 