TABLE 1.

AUA NMIBC Risk Stratification

Low Risk	Intermediate Risk	High Risk
Single low-grade Ta lesion ≤3 cm	Recurrence within 1 y; low-grade Ta	Any recurrent high-grade Ta
Papillary urothelial neoplasm of low malignant potential	Single low-grade Ta >3 cm	High-grade T1
	Low-grade Ta, multiple lesions	Carcinoma in situ
	High-grade Ta ≤3 cm	High-grade Ta >3 cm or multiple lesions
	Low-grade T1	BCG failures in high-grade patient
		Variant histology; lymphovascular invasion; high-grade prostatic urethral invasion

Adapted from Chang SS et al.⁷

AUA, American Urological Association; BCG, bacillus Calmette-Guerin; NMIBC, non-muscle invasive bladder cancer.