Urothelial neoplasms-noninvasive
Flat lesions with atypia of unknown significance

Author: Monika Roychowdhury, M.D. (see Authors page)

Revised: 15 August 2016, last major update June 2016

Copyright: (c) 2003-2016,, Inc.

PubMed Search: Flat lesions with atypia
Cite this page: Flat lesions with atypia of unknown significance. website. Accessed November 18th, 2018.
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