1.

WHO 2004 and 2016 versions of non-invasive bladder urothelial tumors

2004 version	2016 version
Carcinoma in situ in urinary tract	Carcinoma in situ in urinary tract
Low-grade papillary urothelial carcinoma	Low-grade papillary urothelial carcinoma
High-grade papillary urothelial carcinoma	High-grade papillary urothelial carcinoma
	Papillary urothelial carcinoma with inverted structure
Papillary urothelial neoplasms of low malignant potential	Papillary urothelial neoplasms of low malignant potential
Urothelial papilloma	Urothelial papilloma
Inverted urothelial papilloma	Urothelial hyperplasia or dysplasia of uncertain malignant potential