Penis & scrotum
Male urethra
Benign male urethral lesions
Author: Turki Al-Hussain, M.D.
Last author update: 1 June 2012
Last staff update: 23 July 2021
Copyright: 2002-2023, PathologyOutlines.com, Inc.
PubMed Search: urethra benign lesions male
Table of Contents
Diverticula | Inverted papilloma | Leiomyoma | Nephrogenic (mesonephric) adenoma | Papilloma | Polypoid urethritis | ProlapseCite this page: Al-Hussain T. Benign male urethral lesions. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/prostatebenignmaleurethralesions.html. Accessed March 26th, 2023.
Diverticula
Definition / general:
- Usually women, either acquired or congenital
- In adults, usually secondary to infection, trauma, calculus, obstruction, dilation or inflammation of paraurethral gland
- Carcinoma may arise in diverticula very rarely
Microscopic (histologic) description:
- Lined by urothelium, with or without squamous or glandular metaplasia
- Submucosa is often edematous and inflamed
- Nephrogenic adenoma may arise in diverticula
Inverted papilloma
Definition / general:
- Rare in urethra
- Similar to those in bladder
Leiomyoma
Definition / general:
- Most common soft tissue tumor of urethra
- Relatively common in women, rare (< 10 reported) in men
Case report:
Nephrogenic (mesonephric) adenoma
Definition / general:
- Metaplastic change, not neoplastic, common in urethra
- Similar to lesions in bladder neck
Papilloma
Definition / general:
- Rare in urethra
- Similar to those in bladder
Prolapse
Definition / general:
- May occur in childhood and simulate a neoplasm
