Prostate
Benign lesions / conditions
Urethral polyp


Topic Completed: 1 July 2012

Revised: 10 May 2019

Copyright: 2003-2019, PathologyOutlines.com, Inc.

PubMed search: prostatic urethral polyp

Monika Roychowdhury, M.D.
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Cite this page: Roychowdhury M. Urethral polyp. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/prostateurethralpolyp.html. Accessed October 15th, 2019.
Definition / general
  • Usually asymptomatic but may cause hematuria in young adults
  • Benign, although prostatic adenocarcinoma can also present as a urethral polyp (Pathology 2007;39:476)
  • Cystoscopically, the lesions appear as discrete small papillary growths that may be solitary or extensive, producing a velvety coating on the mucosa
Treatment
  • Transurethral fulguration
Gross description
Microscopic (histologic) description
  • Papillary fronds contain a thin fibrovascular core and are covered by normal prostatic acinar epithelium
  • Tall columnar cells of prostatic origin, may have nephrogenic (adenomatoid) appearance
  • May coexist with carcinoma
  • Papillary projections often contain prostatic stroma and glands
  • Occasionally, foci of residual urothelium can be seen
  • Broad fingerlike projections differ from delicate fibrovascular cores of papillary urothelial carcinoma
Microscopic (histologic) images

Images hosted on other servers:

Various images

Cytology description
Cytology images

Images hosted on other servers:
Positive stains
  • PSA, PAP
Differential diagnosis
  • Villous polyps: dysplastic epithelium resembles colonic adenomas, are actually papillary prostatic duct adenocarcinomas
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