Upstaging of nonurothelial histology in bladder cancer at the time of surgical treatment in the National Cancer Data Base

We present the largest survival analysis of various rare subtypes of bladder cancer to date. Patients with nonurothelial bladder cancer have significantly higher rate of upstaging at cystectomy and with this a worsened overall survival. Aggressive treatment should be strongly considered for nonurothelial cancers when identified.