Benign / nonneoplastic lesions
Inverted urothelial papilloma

Author: Branko Perunovic , M.D. (see Authors page)

Revised: 13 September 2017, last major update May 2007

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

PubMed search: Inverted urothelial papilloma [title]

Cite this page: Inverted urothelial papilloma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/cervixinverted.html. Accessed October 15th, 2018.
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