Reading retardation: A 12-year prospective study

The Genitourinary Pathology Society Update on Classification and Grading of Flat and Papillary Urothelial Neoplasia With New Reporting Recommendations and Approach to Lesions With Mixed and Early Patterns of Neoplasia

“…In studies from the Johns Hopkins Hospital, the term “papillary urothelial hyperplasia” was introduced for lesions composed of thickened undulating urothelium without cytologic atypia, arranged in narrow mucosal folds with tented morphology 93–95. Some cases also show increased vascularity in the stroma at the base of the folds.…”

“…In studies from the Johns Hopkins Hospital, the term "papillary urothelial hyperplasia" was introduced for lesions composed of thickened undulating urothelium without cytologic atypia, arranged in narrow mucosal folds with tented morphology. [93][94][95] Some cases also show increased vascularity in the stroma at the base of the folds. In 2015, at the WHO Urologic tumors expert author meeting held in Zurich Switzerland, "papillary urothelial hyperplasia" was criticized for several reasons.…”