Bladder & urothelial tract
Urothelial neoplasms - noninvasive
Flat lesions with atypia of unknown significance
Author: Monika Roychowdhury, M.D.
Last author update: 1 June 2016
Last staff update: 1 November 2021
Copyright: 2003-2025, PathologyOutlines.com, Inc.
PubMed Search: Flat lesions with atypia
Cite this page: Roychowdhury M Flat lesions with atypia of unknown significance. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/bladderflatatypiaunknown.html. Accessed April 1st, 2025.
Definition / general
- Atypia between reactive and dysplasia
- More pleomorphism and hyperchromasia than expected for the amount of inflammation present
- Recommend close follow up and reevaluation after inflammation subsides
Differential diagnosis
