Transitional cell carcinoma, also known as urothelial carcinoma, is a malignant type of cancer that is found in the inside lining (the urothelium), of the bladder and or ureters.
It is the most common type of bladder cancer.
The earliest form of transitional cell cancer is identified by cystoscopy (a scope in the bladder), whereas the TrueScan scan will find larger tumors projecting into the bladder.