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Case Reports
. 2014 Sep;55(9):841-4.

Bilateral congenital ureteral strictures in a young cat

Namsoon Lee  1 , Mihyun Choi  1 , Seoyeon Keh  1 , Yein Oh  1 , Jimin Seo  1 , Heeyeon Choi  1 , Hyunwook Kim  1 , Junghee Yoon  1
Affiliations
Case Reports

Bilateral congenital ureteral strictures in a young cat

Namsoon Lee et al. Can Vet J. 2014 Sep.

Abstract
in English, French

An 8-month-old cat was presented with bilateral hydronephrosis. Bilateral ureteral obstructions were identified by diagnostic imaging and confirmed by necropsy. Histopathologic findings revealed polypoid transitional epithelial hyperplasia with chronic lymphoplasmacytic inflammation. This report documents congenital ureteral strictures as a cause of ureteral obstruction in a young cat.

Constriction urétérale bilatérale congénitale chez un jeune chat. Un chat âgé de 8 mois a été présenté avec une hydrophénose bilatérale. Des obstructions urétérales bilatérales ont été identifiées par imagerie diagnostique et confirmée par nécropsie. Les résultats histopathologiques ont révélé une hyperplasie épithéliale polypoïde transitionnelle avec une inflammation lymphoplasmacytique chronique. Ce rapport documente les constrictions urétérales congénitales comme cause de l’obstruction urétérale chez un jeune chat.(Traduit par Isabelle Vallières).

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Figures

Figure 1
Figure 1
Ultrasonographic image of kidneys and ureters. Bilateral hydronephrosis (A, D) and hydroureters (B, E, F) are present. The left mid-ureteral wall is focally thick (B, white arrow) and the distal ureter is normal (C). The lesion of the right ureteral wall is not identified (E, F).
Figure 2
Figure 2
Antegrade pyelography of kidneys. Dilation and tortuous course of the ureters (left: thin white arrow, right: thin black arrow) are detected immediately after injection of contrast medium (A). A filling defect in the right distal ureter (thick black arrow) at 30 min (B) and a filling defect in the left mid-ureter (thick white arrow) at 60 min are shown (C). These findings confirmed partial obstruction in both ureters.
Figure 3
Figure 3
The left mid-ureter. The lesion in the ureteral wall (white and black arrows) is shown as firm and thick (A, B). The lumen is narrowed (C, thick black arrow).
Figure 4
Figure 4
Histopathology revealed an irregular region of papillary hyperplasia of the luminal transitional epithelium with luminal projections of stromal tissue and hyperplastic epithelium (A, asterisk). The epithelial components are well-differentiated (B).
See this image and copyright information in PMC

References

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