Welcome to Bladder Flat Lesions
This project aims to standardize classification of flat lesions of the urothelium. The diagnostic categories are:
– reactive atypia
– carcinoma in situ (CIS)
This is the free version of Imagebase, showing a few selected cases and with limited functionality. If you wish to see all consensus cases you need to become member of ISUP. To see the images of the free version click CASES in the top menu.