Bladder
Urothelial nonneplastic lesions
Flat lesions with atypia of unknown significance

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

Revised: 29 June 2016, last major update June 2016

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PubMed Search: Flat lesions with atypia
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