label: papillary urothelial hyperplasia
label_lc: papillary urothelial hyperplasia
description: A type of hyperplasia that is characterized by variable thickening of the urinary tract epithelium and a slight papillary growth. The latter is not associated with the presence of fibrovascular cores. There is no evidence of atypia. The relationship between this lesion and papillary urothelial neoplasia is not clear. -- 2003