urothelial hyperplasia

Definition: Urothelial hyperplasia is thickened urothelium (has an increased number of layers), without structural or cytologic atypia.

Urothelial hyperplasia (flat urothelial hyperplasia) refers to the layer of urothelium above the basement membrane - not within the lamina propria.

Images

 flat urothelial hyperplasia

• http://www.webpathology.com/image.asp?n=1&Case;=57

See also

 urothelial hyperplasia

• papillary urothelial hyperplasia
• flat urothelial hyperplasia