Canis ISSN: 2398-2942

Vagina: hypertrophy

Contributor(s): Autumn P Davidson

Introduction

  • Cause: exaggerated normal response to elevated estrogens during pro-estrus.
  • Signs: more severe cases show vestibular prolapse. Occur at first estrus and will recur subsequently.
  • Diagnosis: clinical signs and history.
  • Treatment: ovariohysterectomy in severe cases and for prevention in non-breeding bitch.
  • Prognosis: excellent following surgery.

Pathogenesis

Etiology

  • High estrogen levels during pro-estrus cause excessive, focal vaginal tissue hypertrophy.
  • Heritable predisposition.

Pathophysiology

  • Tissues of vaginal floor immediately cranial to urethra become particularly prominent.
  • Urethral patency is compromised in severe cases.
  • May prevent normal copulation. Artificial insemination possible.

Timecourse

  • Spontaneous resolution of hypertrophy normally occurs during diestrus.

Diagnosis

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Treatment

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Prevention

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Further Reading

Publications

Refereed papers


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