Benign / nonneoplastic lesions
Inverted urothelial papilloma

Topic Completed: 1 May 2007

Revised: 27 December 2018, last major update May 2007

Copyright: (c) 2007-2017, PathologyOutlines.com, Inc.

PubMed search: Inverted urothelial papilloma [title]

Branko Perunovic D.M.
Page views in 2018: 451
Page views in 2019 to date: 459
Cite this page: Perunovic B. Inverted urothelial papilloma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/cervixinverted.html. Accessed October 18th, 2019.
Definition / general
  • Rare; resembles more common bladder tumor
Case reports
Microscopic (histologic) description
  • Inverted epithelial nests separated by fibrovascular septa
  • Epithelial nests have peripheral palisading and are composed of uniform cells containing "swirling" oval nuclei with longitudinal grooves
  • Nests contain cystitis glandularis type areas
  • No significant atypia
  • No / rare mitotic activity
Microscopic (histologic) images

Images hosted on other servers:

Bladder -

Inverted papilloma

Basaloid appearance

With squamous metaplasia

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