Ureteral Ectopia and Urinary Incontinence

Philipp Mayhew, Allyson Berent

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations


Urinary incontinence is a common presenting clinical sign in dogs but occurs with less frequency in cats. A methodical approach to diagnosis and treatment is required as often multiple conditions can coexist in the same patient. In most cases, a combination of careful clinical history, physical examination, laboratory testing, and imaging is required. Treatment of urinary incontinence is frustrating, with some common disease processes, such as urethral sphincter mechanism incompetence (USMI) and ectopic ureter, being associated with relatively high treatment failure rates after both medical and surgical management. The urethral sphincter provides the primary mechanism for retention of continence by providing resistance to outflow during the storage phase of micturition. Ectopic ureter develops because of a defect in the embryologic development of the metanephric duct, which becomes the ureter later in development. A multitude of imaging modalities has been used for the investigation of urinary incontinence in dogs.

Original languageEnglish (US)
Title of host publicationSmall Animal Soft Tissue Surgery
PublisherWiley Blackwell
Number of pages14
ISBN (Print)9781118997505, 9780813807829
StatePublished - Jan 4 2013


  • Ectopic ureter
  • Imaging modalities
  • Urethral sphincter mechanism incompetence (USMI)
  • Urinary incontinence

ASJC Scopus subject areas

  • veterinary(all)


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