Canis ISSN: 2398-2942

Penis: trauma

Synonym(s): Penile trauma

Contributor(s): Elisa Mazzaferro

Introduction

  • Uncommon.
  • Cause: road traffic accident/hit by car (RTA/HBC), ballistic impacts, bite wounds, malicious intervention (occasionally).
  • Signs: severe hemorrhage, urethral obstruction, dysuria, fractured os penis.
  • Diagnosis: history, clinical signs, radiography.
  • Treatment: simple repair with sutures to penile amputation depending on severity.
  • Prognosis: depends on extent of trauma.

Pathogenesis

Etiology

  • RTA (HBC).
  • Ballistic impacts.
  • Bite wounds.
  • Malicious intervention (occasionally).
  • Blunt trauma.

Predisposing factors

General
  • Over sexed dog where excessive masturbation → trauma.

Pathophysiology

  • Penile trauma and lacerations involving cavernous tissue result in severe hemorrhage.
  • More chronic injuries may cause urethral obstruction and dysuria.
  • Crush injuries may result in fracture of os penis with further laceration of cavernous tissue.
  • Fractures of os penis may result in dysuria.

Timecourse

  • Acute signs following injury.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Erne J B & McNicholas W T (2009) What is your diagnosis? Urethral obstruction and fracture of the os penis. JAVMA 234 (2), 201-202 PubMed.
  • Mahler S P & Wint C E (2004) What is your diagnosis? Urethral trauma. JAVMA 225 (6), 839-840 PubMed.


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