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Prostatic urethra malformation associated with retrograde ejaculation: a case report.

Kai Zhao1, Jianzhong Zhang1, Aiming Xu1

  • 1State Key Laboratory of Reproductive Medicine and Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.

Journal of Medical Case Reports
|December 23, 2016
PubMed
Summary
This summary is machine-generated.

Congenital malformations of the prostatic urethra, such as absent verumontanum and ejaculatory duct cysts, are rare causes of retrograde ejaculation. These anatomical abnormalities can impede normal seminal fluid flow and bladder neck function.

Keywords:
AzoospermiaCongenital abnormalitiesEjaculatory ductUrethra

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Area of Science:

  • Urology
  • Reproductive Medicine
  • Anatomical Pathology

Background:

  • Retrograde ejaculation stems from various causes including anatomical, neurogenic, and pharmacological factors.
  • Congenital malformations of the prostatic urethra represent an infrequent etiology of ejaculatory dysfunction.

Observation:

  • A 29-year-old man presented with retrograde ejaculation due to an absent verumontanum and ejaculatory duct cysts.
  • The absence of the verumontanum created a groove near the bladder neck, potentially affecting its contraction.
  • Large ejaculatory duct cysts may have obstructed the prostatic urethra's anterior outlet, hindering antegrade seminal flow.

Findings:

  • This case highlights a rare association between congenital posterior urethral malformations and retrograde ejaculation.
  • Bladder neck laxity and increased prostatic urethral outlet tone can contribute to this condition.

Implications:

  • Prostatic urethral malformations are uncommon yet significant causes of retrograde ejaculation.
  • Diagnosis and treatment of such anatomical abnormalities can be challenging.