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Ureteral duplication in a dog.

Meredith L Esterline1, David S Biller, Gretchen K Sicard

  • 1Department of Clinical Sciences, Veterinary Medical Teaching Hospital, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA. mesterli@vet.k-state.edu

Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association
|January 7, 2006
PubMed
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A dog presented with urinary issues and abdominal pain. Diagnosis revealed ureteral duplication, a condition where an extra ureter is present, requiring surgical removal of the affected kidney and ureter.

Area of Science:

  • Veterinary Medicine
  • Canine Urology
  • Surgical Pathology

Background:

  • Recurrent urinary tract infections and caudal abdominal pain are common in dogs.
  • Abnormalities in the urinary system can lead to significant health complications.

Purpose of the Study:

  • To diagnose and manage a case of suspected ureteral duplication in a dog.
  • To investigate the cause of recurrent urinary tract infections and abdominal pain.

Main Methods:

  • Diagnostic imaging including sonography, excretory urography, and computed tomography (CT) of the abdomen.
  • Surgical exploration and removal of the affected left kidney, ureter, and associated tubular structure.
  • Gross pathological and histopathological examination of the excised tissues.

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Main Results:

  • Sonography revealed a dilated tubular structure from the left kidney to the bladder neck.
  • Excretory urogram showed left hydronephrosis with a normal ureter.
  • CT confirmed a large, blind-ending tubular structure originating from the kidney.
  • Histopathology confirmed the tubular structure as a duplicated ureter, separate from the normal ureter.

Conclusions:

  • Ureteral duplication is a rare congenital anomaly in dogs that can lead to clinical signs such as urinary tract infections and pain.
  • Advanced imaging techniques are crucial for diagnosing complex urinary tract abnormalities.
  • Surgical intervention may be necessary for definitive treatment of ureteral duplication.