Urothelial (transitional) metaplasia

Topic Completed: 1 March 2003

Revised: 25 February 2019

Copyright: 2002-2017,, Inc.

PubMed Search: Urothelial (transitional) metaplasia

Nat Pernick, M.D.
Page views in 2018: 256
Page views in 2019 to date: 190
Cite this page: Pernick N. Urothelial (transitional) metaplasia. website. Accessed September 24th, 2019.
Definition / general
  • Mean age 68 years (range 50 to 84 years); usually no hormonal therapy; incidental microscopic finding
Microscopic (histologic) description
  • Hyperplastic epithelium lacking maturation, composed of spindled nuclei with longitudinal nuclear grooves, perinuclear halos, low N/C ratios, rare / no mitotic figures
  • Usually no atypia
Differential diagnosis
Additional references
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