Polypoid Cystitis
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
The stroma of polypoid fronds is edematous and contains chronic inflammatory infiltrate. The main diferential diagnosis is with papillary urothelial neoplasm of low malignant potential and low-grade papillary urothelial carcinoma, both of which contain narrow based, delicate papillary fronds with well-defined fibrovascular cores.