Prostate gland & seminal vesicles
Prostatic urethra
Urethral polyp

Topic Completed: 1 July 2012

Minor changes: 10 May 2019

Copyright: 2003-2019,, Inc.

PubMed search: prostatic urethral polyp

Monika Roychowdhury, M.D.
Page views in 2019: 3,670
Page views in 2020 to date: 2,176
Cite this page: Roychowdhury M. Urethral polyp. website. Accessed August 14th, 2020.
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
  • 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

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Various images

Cytology description
Cytology images

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