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Case Reports
. 2018 Mar;59(3):243-248.

Suspected congenital urethral diverticulum in a dog

Aylin Atilla  1
Affiliations
Case Reports

Suspected congenital urethral diverticulum in a dog

Aylin Atilla. Can Vet J. 2018 Mar.

Abstract
in English, French

A 2-year-old neutered male dog with a history of urinary incontinence, recurrent urinary tract infections, and unilateral cryptorchidism was presented with an acute onset of perineal swelling. Urinary contrast studies revealed a urothelial lined structure in the perineum. Surgical resection of 80% to 90% of this structure, suspected to be a congenital urethral diverticulum, was successful.

Diverticule urétral congénital soupçonné chez un chien. Un chien mâle stérilisé âgé de 2 ans ayant une anamnèse d’incontinence urinaire, d’infections des voies urinaires récurrentes et de cryptorchidie unilatérale a été présenté suite à l’apparition aiguë d’enflure périnéale. Des épreuves de contraste urinaire ont révélé une structure urothéliale recouverte dans le périnée. Une résection chirurgicale de 80 % à 90 % de cette structure, soupçonnée d’être un diverticule urétral congénital, a été réalisée avec succès.(Traduit par Isabelle Vallières).

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Figures

Figure 1
Figure 1
Pre-contrast lateral radiograph showing some of the swelling in the perineal area (white arrow).
Figure 2
Figure 2
Ventro-dorsal view 5 min after IV administration of contrast. Note that only the left kidney is visible (white arrow).
Figure 3
Figure 3
Ventro-dorsal view 30 min post-contrast. Note the 2 large swellings in the caudal abdomen/perineal area. The cranial one is believed to be the bladder (long arrow) and the caudal one is likely to be the urethral diverticulum (short arrow). Note the intrapelvic bladder — this persists through the entire study.
Figure 4
Figure 4
Lateral view 30 min post-contrast. Note the 2 large swellings in the caudal abdomen/perineal area. The cranial one is believed to be the bladder (long arrow) and the caudal one is likely to be the urethral diverticulum (short arrow).
Figure 5
Figure 5
Lateral view of a pneumocystogram which was performed at the end. The urethral diverticulum (short arrow) filled easily with air. The bladder (long arrow) did not appear to have air in it at this time.
Figure 6
Figure 6
Ventro-dorsal oblique view of the pneumocystogram which was performed at the end. Both the bladder (long arrow) and the urethral diverticulum (short arrow) filled easily with air.
Figure 7
Figure 7
A photograph of the urethral diverticulum once it had been opened. Stay sutures were placed in the wall of the structure and were pulling it up towards the surgeon. In the depths of the opening, ventrally, the urinary catheter was barely visible (arrow).
Figure 8
Figure 8
A photograph of the urinary catheter placed into the proximal urethral opening leading to the bladder. The previously placed (during the abdominal surgery) urinary catheter was identified coming out of the distal urethral opening (large arrow). The tip was then placed into the proximal opening (small arrow) and it was passed into the bladder within the abdomen and urine was retrieved, confirming its location.
Figure 9
Figure 9
A photograph of the diverticulum that had been dissected out before resection of the area. The dissection plane between the diverticulum and surrounding perineal tissues was maintained in close proximity to the diverticulum wall. The stay sutures are pulling the anomalous structure to the right. The purse string suture placed around the anus is visible to the left.
See this image and copyright information in PMC

References

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