Urothelial (Transitional Cell) Carcinoma In Situ (including flat hyperplasia and dysplasia)
Grading / Staging
Grading
- Urothelial carcinoma in situ is not graded
- It is by definition high grade
Staging
- Urothelial carcinoma in situ is staged as Tis
- (While non-invasive papillary urothelial neoplasms are technically also in situ, they are staged as Ta and are not referred to as carcinoma in situ)
